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Man berechnet sie mit dem Satz des Pythagoras im Trapez-Querschnitt: Die Katheten sind die Höhe ",[582,914,916,930],{"className":915},[585],[582,917,919],{"className":918},[589],[591,920,921],{"xmlns":593},[595,922,923,928],{},[598,924,925],{},[601,926,927],{},"h",[615,929,927],{"encoding":617},[582,931,933],{"className":932,"ariaHidden":623},[622],[582,934,936,940],{"className":935},[627],[582,937],{"className":938,"style":939},[631],"height:0.6944em;",[582,941,927],{"className":942},[636,637]," und der Radienunterschied ",[582,945,947,966],{"className":946},[585],[582,948,950],{"className":949},[589],[591,951,952],{"xmlns":593},[595,953,954,963],{},[598,955,956,958,961],{},[601,957,609],{},[773,959,960],{},"−",[601,962,702],{},[615,964,965],{"encoding":617},"R - r",[582,967,969,988],{"className":968,"ariaHidden":623},[622],[582,970,972,976,979,982,985],{"className":971},[627],[582,973],{"className":974,"style":975},[631],"height:0.7667em;vertical-align:-0.0833em;",[582,977,609],{"className":978,"style":645},[636,637],[582,980],{"className":981,"style":848},[819],[582,983,960],{"className":984},[852],[582,986],{"className":987,"style":848},[819],[582,989,991,994],{"className":990},[627],[582,992],{"className":993,"style":908},[631],[582,995,702],{"className":996,"style":726},[636,637],[563,998,999],{},"Für einen offenen Behälter wie einen Eimer lässt man den Deckkreis weg.",[558,1001,1003],{"id":1002},"herleitung","Herleitung",[563,1005,1006,1007,1162],{},"Der Mantel ist der Mantel des ganzen Kegels minus der Mantel der abgeschnittenen Spitze. Mit der Mantellinie ",[582,1008,1010,1044],{"className":1009},[585],[582,1011,1013],{"className":1012},[589],[591,1014,1015],{"xmlns":593},[595,1016,1017,1041],{},[598,1018,1019,1022,1024],{},[601,1020,1021],{},"S",[773,1023,775],{},[1025,1026,1027,1033],"mfrac",{},[598,1028,1029,1031],{},[601,1030,798],{},[601,1032,609],{},[598,1034,1035,1037,1039],{},[601,1036,609],{},[773,1038,960],{},[601,1040,702],{},[615,1042,1043],{"encoding":617},"S = \\frac{sR}{R - r}",[582,1045,1047,1066],{"className":1046,"ariaHidden":623},[622],[582,1048,1050,1053,1057,1060,1063],{"className":1049},[627],[582,1051],{"className":1052,"style":811},[631],[582,1054,1021],{"className":1055,"style":1056},[636,637],"margin-right:0.0576em;",[582,1058],{"className":1059,"style":820},[819],[582,1061,775],{"className":1062},[824],[582,1064],{"className":1065,"style":820},[819],[582,1067,1069,1073],{"className":1068},[627],[582,1070],{"className":1071,"style":1072},[631],"height:1.2757em;vertical-align:-0.4033em;",[582,1074,1076,1080,1159],{"className":1075},[636],[582,1077],{"className":1078},[841,1079],"nulldelimiter",[582,1081,1083],{"className":1082},[1025],[582,1084,1087,1150],{"className":1085},[653,1086],"vlist-t2",[582,1088,1090,1145],{"className":1089},[657],[582,1091,1094,1116,1127],{"className":1092,"style":1093},[661],"height:0.8723em;",[582,1095,1097,1101],{"style":1096},"top:-2.655em;",[582,1098],{"className":1099,"style":1100},[668],"height:3em;",[582,1102,1104],{"className":1103},[673,674,675,676],[582,1105,1107,1110,1113],{"className":1106},[636,676],[582,1108,609],{"className":1109,"style":645},[636,637,676],[582,1111,960],{"className":1112},[852,676],[582,1114,702],{"className":1115,"style":726},[636,637,676],[582,1117,1119,1122],{"style":1118},"top:-3.23em;",[582,1120],{"className":1121,"style":1100},[668],[582,1123],{"className":1124,"style":1126},[1125],"frac-line","border-bottom-width:0.04em;",[582,1128,1130,1133],{"style":1129},"top:-3.394em;",[582,1131],{"className":1132,"style":1100},[668],[582,1134,1136],{"className":1135},[673,674,675,676],[582,1137,1139,1142],{"className":1138},[636,676],[582,1140,798],{"className":1141},[636,637,676],[582,1143,609],{"className":1144,"style":645},[636,637,676],[582,1146,1149],{"className":1147},[1148],"vlist-s","​",[582,1151,1153],{"className":1152},[657],[582,1154,1157],{"className":1155,"style":1156},[661],"height:0.4033em;",[582,1158],{},[582,1160],{"className":1161},[868,1079]," des ganzen Kegels (Strahlensatz) ergibt sich",[582,1164,1167],{"className":1165},[1166],"katex-display",[582,1168,1170,1227],{"className":1169},[585],[582,1171,1173],{"className":1172},[589],[591,1174,1176],{"xmlns":593,"display":1175},"block",[595,1177,1178,1224],{},[598,1179,1180,1182,1184,1186,1188,1190,1192,1194,1196,1198,1200,1202,1204,1206,1208,1210,1212,1214,1216,1218,1220,1222],{},[601,1181,771],{},[773,1183,775],{},[601,1185,603],{},[601,1187,609],{},[601,1189,1021],{},[773,1191,960],{},[601,1193,603],{},[601,1195,702],{},[773,1197,781],{"stretchy":780},[601,1199,1021],{},[773,1201,960],{},[601,1203,798],{},[773,1205,791],{"stretchy":780},[773,1207,775],{},[601,1209,603],{},[773,1211,781],{"stretchy":780},[601,1213,609],{},[773,1215,786],{},[601,1217,702],{},[773,1219,791],{"stretchy":780},[793,1221,795],{},[601,1223,798],{},[615,1225,1226],{"encoding":617},"M = \\pi R S - \\pi r (S - s) = \\pi (R + r)\\, s",[582,1228,1230,1248,1272,1299,1320,1344],{"className":1229,"ariaHidden":623},[622],[582,1231,1233,1236,1239,1242,1245],{"className":1232},[627],[582,1234],{"className":1235,"style":811},[631],[582,1237,771],{"className":1238,"style":815},[636,637],[582,1240],{"className":1241,"style":820},[819],[582,1243,775],{"className":1244},[824],[582,1246],{"className":1247,"style":820},[819],[582,1249,1251,1254,1257,1260,1263,1266,1269],{"className":1250},[627],[582,1252],{"className":1253,"style":975},[631],[582,1255,603],{"className":1256,"style":638},[636,637],[582,1258,609],{"className":1259,"style":645},[636,637],[582,1261,1021],{"className":1262,"style":1056},[636,637],[582,1264],{"className":1265,"style":848},[819],[582,1267,960],{"className":1268},[852],[582,1270],{"className":1271,"style":848},[819],[582,1273,1275,1278,1281,1284,1287,1290,1293,1296],{"className":1274},[627],[582,1276],{"className":1277,"style":834},[631],[582,1279,603],{"className":1280,"style":638},[636,637],[582,1282,702],{"className":1283,"style":726},[636,637],[582,1285,781],{"className":1286},[841],[582,1288,1021],{"className":1289,"style":1056},[636,637],[582,1291],{"className":1292,"style":848},[819],[582,1294,960],{"className":1295},[852],[582,1297],{"className":1298,"style":848},[819],[582,1300,1302,1305,1308,1311,1314,1317],{"className":1301},[627],[582,1303],{"className":1304,"style":834},[631],[582,1306,798],{"className":1307},[636,637],[582,1309,791],{"className":1310},[868],[582,1312],{"className":1313,"style":820},[819],[582,1315,775],{"className":1316},[824],[582,1318],{"className":1319,"style":820},[819],[582,1321,1323,1326,1329,1332,1335,1338,1341],{"className":1322},[627],[582,1324],{"className":1325,"style":834},[631],[582,1327,603],{"className":1328,"style":638},[636,637],[582,1330,781],{"className":1331},[841],[582,1333,609],{"className":1334,"style":645},[636,637],[582,1336],{"className":1337,"style":848},[819],[582,1339,786],{"className":1340},[852],[582,1342],{"className":1343,"style":848},[819],[582,1345,1347,1350,1353,1356,1359],{"className":1346},[627],[582,1348],{"className":1349,"style":834},[631],[582,1351,702],{"className":1352,"style":726},[636,637],[582,1354,791],{"className":1355},[868],[582,1357],{"className":1358,"style":872},[819],[582,1360,798],{"className":1361},[636,637],[558,1363,1365],{"id":1364},"beispiele","Beispiele",[563,1367,1368,1369,1437,1438,1502,1503,1568],{},"Ein Kegelstumpf hat ",[582,1370,1372,1396],{"className":1371},[585],[582,1373,1375],{"className":1374},[589],[591,1376,1377],{"xmlns":593},[595,1378,1379,1393],{},[598,1380,1381,1383,1385,1388,1390],{},[601,1382,609],{},[773,1384,775],{},[611,1386,1387],{},"5",[793,1389,795],{},[793,1391,1392],{},"cm",[615,1394,1395],{"encoding":617},"R = 5\\,\\text{cm}",[582,1397,1399,1417],{"className":1398,"ariaHidden":623},[622],[582,1400,1402,1405,1408,1411,1414],{"className":1401},[627],[582,1403],{"className":1404,"style":811},[631],[582,1406,609],{"className":1407,"style":645},[636,637],[582,1409],{"className":1410,"style":820},[819],[582,1412,775],{"className":1413},[824],[582,1415],{"className":1416,"style":820},[819],[582,1418,1420,1424,1427,1430],{"className":1419},[627],[582,1421],{"className":1422,"style":1423},[631],"height:0.6444em;",[582,1425,1387],{"className":1426},[636],[582,1428],{"className":1429,"style":872},[819],[582,1431,1434],{"className":1432},[636,1433],"text",[582,1435,1392],{"className":1436},[636],", ",[582,1439,1441,1463],{"className":1440},[585],[582,1442,1444],{"className":1443},[589],[591,1445,1446],{"xmlns":593},[595,1447,1448,1460],{},[598,1449,1450,1452,1454,1456,1458],{},[601,1451,702],{},[773,1453,775],{},[611,1455,613],{},[793,1457,795],{},[793,1459,1392],{},[615,1461,1462],{"encoding":617},"r = 2\\,\\text{cm}",[582,1464,1466,1484],{"className":1465,"ariaHidden":623},[622],[582,1467,1469,1472,1475,1478,1481],{"className":1468},[627],[582,1470],{"className":1471,"style":908},[631],[582,1473,702],{"className":1474,"style":726},[636,637],[582,1476],{"className":1477,"style":820},[819],[582,1479,775],{"className":1480},[824],[582,1482],{"className":1483,"style":820},[819],[582,1485,1487,1490,1493,1496],{"className":1486},[627],[582,1488],{"className":1489,"style":1423},[631],[582,1491,613],{"className":1492},[636],[582,1494],{"className":1495,"style":872},[819],[582,1497,1499],{"className":1498},[636,1433],[582,1500,1392],{"className":1501},[636]," und ",[582,1504,1506,1529],{"className":1505},[585],[582,1507,1509],{"className":1508},[589],[591,1510,1511],{"xmlns":593},[595,1512,1513,1526],{},[598,1514,1515,1517,1519,1522,1524],{},[601,1516,927],{},[773,1518,775],{},[611,1520,1521],{},"4",[793,1523,795],{},[793,1525,1392],{},[615,1527,1528],{"encoding":617},"h = 4\\,\\text{cm}",[582,1530,1532,1550],{"className":1531,"ariaHidden":623},[622],[582,1533,1535,1538,1541,1544,1547],{"className":1534},[627],[582,1536],{"className":1537,"style":939},[631],[582,1539,927],{"className":1540},[636,637],[582,1542],{"className":1543,"style":820},[819],[582,1545,775],{"className":1546},[824],[582,1548],{"className":1549,"style":820},[819],[582,1551,1553,1556,1559,1562],{"className":1552},[627],[582,1554],{"className":1555,"style":1423},[631],[582,1557,1521],{"className":1558},[636],[582,1560],{"className":1561,"style":872},[819],[582,1563,1565],{"className":1564},[636,1433],[582,1566,1392],{"className":1567},[636],". Zuerst die Mantellinie:",[582,1570,1572],{"className":1571},[1166],[582,1573,1575,1619],{"className":1574},[585],[582,1576,1578],{"className":1577},[589],[591,1579,1580],{"xmlns":593,"display":1175},[595,1581,1582,1616],{},[598,1583,1584,1586,1588,1608,1610,1612,1614],{},[601,1585,798],{},[773,1587,775],{},[1589,1590,1591],"msqrt",{},[598,1592,1593,1600,1602],{},[605,1594,1595,1598],{},[611,1596,1597],{},"3",[611,1599,613],{},[773,1601,786],{},[605,1603,1604,1606],{},[611,1605,1521],{},[611,1607,613],{},[773,1609,775],{},[611,1611,1387],{},[793,1613,795],{},[793,1615,1392],{},[615,1617,1618],{"encoding":617},"s = \\sqrt{3^2 + 4^2} = 5\\,\\text{cm}",[582,1620,1622,1640,1787],{"className":1621,"ariaHidden":623},[622],[582,1623,1625,1628,1631,1634,1637],{"className":1624},[627],[582,1626],{"className":1627,"style":908},[631],[582,1629,798],{"className":1630},[636,637],[582,1632],{"className":1633,"style":820},[819],[582,1635,775],{"className":1636},[824],[582,1638],{"className":1639,"style":820},[819],[582,1641,1643,1647,1778,1781,1784],{"className":1642},[627],[582,1644],{"className":1645,"style":1646},[631],"height:1.24em;vertical-align:-0.1777em;",[582,1648,1651],{"className":1649},[636,1650],"sqrt",[582,1652,1654,1769],{"className":1653},[653,1086],[582,1655,1657,1766],{"className":1656},[657],[582,1658,1661,1743],{"className":1659,"style":1660},[661],"height:1.0623em;",[582,1662,1666,1670],{"className":1663,"style":1665},[1664],"svg-align","top:-3.2em;",[582,1667],{"className":1668,"style":1669},[668],"height:3.2em;",[582,1671,1674,1705,1708,1711,1714],{"className":1672,"style":1673},[636],"padding-left:1em;",[582,1675,1677,1680],{"className":1676},[636],[582,1678,1597],{"className":1679},[636],[582,1681,1683],{"className":1682},[649],[582,1684,1686],{"className":1685},[653],[582,1687,1689],{"className":1688},[657],[582,1690,1693],{"className":1691,"style":1692},[661],"height:0.7401em;",[582,1694,1696,1699],{"style":1695},"top:-2.989em;margin-right:0.05em;",[582,1697],{"className":1698,"style":669},[668],[582,1700,1702],{"className":1701},[673,674,675,676],[582,1703,613],{"className":1704},[636,676],[582,1706],{"className":1707,"style":848},[819],[582,1709,786],{"className":1710},[852],[582,1712],{"className":1713,"style":848},[819],[582,1715,1717,1720],{"className":1716},[636],[582,1718,1521],{"className":1719},[636],[582,1721,1723],{"className":1722},[649],[582,1724,1726],{"className":1725},[653],[582,1727,1729],{"className":1728},[657],[582,1730,1732],{"className":1731,"style":1692},[661],[582,1733,1734,1737],{"style":1695},[582,1735],{"className":1736,"style":669},[668],[582,1738,1740],{"className":1739},[673,674,675,676],[582,1741,613],{"className":1742},[636,676],[582,1744,1746,1749],{"style":1745},"top:-3.0223em;",[582,1747],{"className":1748,"style":1669},[668],[582,1750,1754],{"className":1751,"style":1753},[1752],"hide-tail","min-width:1.02em;height:1.28em;",[1755,1756,1762],"svg",{"xmlns":1757,"width":1758,"height":1759,"viewBox":1760,"preserveAspectRatio":1761},"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg","400em","1.28em","0 0 400000 1296","xMinYMin slice",[1763,1764],"path",{"d":1765},"M263,681c0.7,0,18,39.7,52,119\nc34,79.3,68.167,158.7,102.5,238c34.3,79.3,51.8,119.3,52.5,120\nc340,-704.7,510.7,-1060.3,512,-1067\nl0 -0\nc4.7,-7.3,11,-11,19,-11\nH40000v40H1012.3\ns-271.3,567,-271.3,567c-38.7,80.7,-84,175,-136,283c-52,108,-89.167,185.3,-111.5,232\nc-22.3,46.7,-33.8,70.3,-34.5,71c-4.7,4.7,-12.3,7,-23,7s-12,-1,-12,-1\ns-109,-253,-109,-253c-72.7,-168,-109.3,-252,-110,-252c-10.7,8,-22,16.7,-34,26\nc-22,17.3,-33.3,26,-34,26s-26,-26,-26,-26s76,-59,76,-59s76,-60,76,-60z\nM1001 80h400000v40h-400000z",[582,1767,1149],{"className":1768},[1148],[582,1770,1772],{"className":1771},[657],[582,1773,1776],{"className":1774,"style":1775},[661],"height:0.1777em;",[582,1777],{},[582,1779],{"className":1780,"style":820},[819],[582,1782,775],{"className":1783},[824],[582,1785],{"className":1786,"style":820},[819],[582,1788,1790,1793,1796,1799],{"className":1789},[627],[582,1791],{"className":1792,"style":1423},[631],[582,1794,1387],{"className":1795},[636],[582,1797],{"className":1798,"style":872},[819],[582,1800,1802],{"className":1801},[636,1433],[582,1803,1392],{"className":1804},[636],[563,1806,1807],{},"Dann die Oberfläche:",[582,1809,1811],{"className":1810},[1166],[582,1812,1814,1877],{"className":1813},[585],[582,1815,1817],{"className":1816},[589],[591,1818,1819],{"xmlns":593,"display":1175},[595,1820,1821,1874],{},[598,1822,1823,1826,1828,1830,1853,1855,1858,1860,1863,1866,1868],{},[601,1824,1825],{},"O",[773,1827,775],{},[601,1829,603],{},[598,1831,1832,1834,1837,1839,1841,1843,1846,1849,1851],{},[773,1833,781],{"fence":623},[611,1835,1836],{},"25",[773,1838,786],{},[611,1840,1521],{},[773,1842,786],{},[611,1844,1845],{},"7",[773,1847,1848],{},"⋅",[611,1850,1387],{},[773,1852,791],{"fence":623},[773,1854,775],{},[611,1856,1857],{},"64",[601,1859,603],{},[773,1861,1862],{},"≈",[611,1864,1865],{},"201,06",[793,1867,795],{},[605,1869,1870,1872],{},[793,1871,1392],{},[611,1873,613],{},[615,1875,1876],{"encoding":617},"O = \\pi \\left(25 + 4 + 7 \\cdot 5\\right) = 64\\pi \\approx 201{,}06\\,\\text{cm}^2",[582,1878,1880,1898,1970,1991],{"className":1879,"ariaHidden":623},[622],[582,1881,1883,1886,1889,1892,1895],{"className":1882},[627],[582,1884],{"className":1885,"style":811},[631],[582,1887,1825],{"className":1888,"style":726},[636,637],[582,1890],{"className":1891,"style":820},[819],[582,1893,775],{"className":1894},[824],[582,1896],{"className":1897,"style":820},[819],[582,1899,1901,1904,1907,1910,1961,1964,1967],{"className":1900},[627],[582,1902],{"className":1903,"style":834},[631],[582,1905,603],{"className":1906,"style":638},[636,637],[582,1908],{"className":1909,"style":872},[819],[582,1911,1914,1919,1922,1925,1928,1931,1934,1937,1940,1943,1946,1949,1952,1955,1958],{"className":1912},[1913],"minner",[582,1915,781],{"className":1916,"style":1918},[841,1917],"delimcenter","top:0em;",[582,1920,1836],{"className":1921},[636],[582,1923],{"className":1924,"style":848},[819],[582,1926,786],{"className":1927},[852],[582,1929],{"className":1930,"style":848},[819],[582,1932,1521],{"className":1933},[636],[582,1935],{"className":1936,"style":848},[819],[582,1938,786],{"className":1939},[852],[582,1941],{"className":1942,"style":848},[819],[582,1944,1845],{"className":1945},[636],[582,1947],{"className":1948,"style":848},[819],[582,1950,1848],{"className":1951},[852],[582,1953],{"className":1954,"style":848},[819],[582,1956,1387],{"className":1957},[636],[582,1959,791],{"className":1960,"style":1918},[868,1917],[582,1962],{"className":1963,"style":820},[819],[582,1965,775],{"className":1966},[824],[582,1968],{"className":1969,"style":820},[819],[582,1971,1973,1976,1979,1982,1985,1988],{"className":1972},[627],[582,1974],{"className":1975,"style":1423},[631],[582,1977,1857],{"className":1978},[636],[582,1980,603],{"className":1981,"style":638},[636,637],[582,1983],{"className":1984,"style":820},[819],[582,1986,1862],{"className":1987},[824],[582,1989],{"className":1990,"style":820},[819],[582,1992,1994,1998,2002,2009,2013,2016],{"className":1993},[627],[582,1995],{"className":1996,"style":1997},[631],"height:1.0585em;vertical-align:-0.1944em;",[582,1999,2001],{"className":2000},[636],"201",[582,2003,2005],{"className":2004},[636],[582,2006,680],{"className":2007},[2008],"mpunct",[582,2010,2012],{"className":2011},[636],"06",[582,2014],{"className":2015,"style":872},[819],[582,2017,2019,2025],{"className":2018},[636],[582,2020,2022],{"className":2021},[636,1433],[582,2023,1392],{"className":2024},[636],[582,2026,2028],{"className":2027},[649],[582,2029,2031],{"className":2030},[653],[582,2032,2034],{"className":2033},[657],[582,2035,2038],{"className":2036,"style":2037},[661],"height:0.8641em;",[582,2039,2041,2044],{"style":2040},"top:-3.113em;margin-right:0.05em;",[582,2042],{"className":2043,"style":669},[668],[582,2045,2047],{"className":2046},[673,674,675,676],[582,2048,613],{"className":2049},[636,676],[563,2051,2052,2053,876],{},"Der Mantel allein ist ",[582,2054,2056,2086],{"className":2055},[585],[582,2057,2059],{"className":2058},[589],[591,2060,2061],{"xmlns":593},[595,2062,2063,2083],{},[598,2064,2065,2068,2070,2072,2075,2077],{},[611,2066,2067],{},"35",[601,2069,603],{},[773,2071,1862],{},[611,2073,2074],{},"109,96",[793,2076,795],{},[605,2078,2079,2081],{},[793,2080,1392],{},[611,2082,613],{},[615,2084,2085],{"encoding":617},"35\\pi \\approx 109{,}96\\,\\text{cm}^2",[582,2087,2089,2110],{"className":2088,"ariaHidden":623},[622],[582,2090,2092,2095,2098,2101,2104,2107],{"className":2091},[627],[582,2093],{"className":2094,"style":1423},[631],[582,2096,2067],{"className":2097},[636],[582,2099,603],{"className":2100,"style":638},[636,637],[582,2102],{"className":2103,"style":820},[819],[582,2105,1862],{"className":2106},[824],[582,2108],{"className":2109,"style":820},[819],[582,2111,2113,2117,2121,2127,2131,2134],{"className":2112},[627],[582,2114],{"className":2115,"style":2116},[631],"height:1.0085em;vertical-align:-0.1944em;",[582,2118,2120],{"className":2119},[636],"109",[582,2122,2124],{"className":2123},[636],[582,2125,680],{"className":2126},[2008],[582,2128,2130],{"className":2129},[636],"96",[582,2132],{"className":2133,"style":872},[819],[582,2135,2137,2143],{"className":2136},[636],[582,2138,2140],{"className":2139},[636,1433],[582,2141,1392],{"className":2142},[636],[582,2144,2146],{"className":2145},[649],[582,2147,2149],{"className":2148},[653],[582,2150,2152],{"className":2151},[657],[582,2153,2155],{"className":2154,"style":632},[661],[582,2156,2157,2160],{"style":664},[582,2158],{"className":2159,"style":669},[668],[582,2161,2163],{"className":2162},[673,674,675,676],[582,2164,613],{"className":2165},[636,676],[558,2167,2169],{"id":2168},"typische-fehler","Typische Fehler",[575,2171,2172,2233,2339],{},[578,2173,2174,2175,2203,2204,2232],{},"Die Höhe ",[582,2176,2178,2191],{"className":2177},[585],[582,2179,2181],{"className":2180},[589],[591,2182,2183],{"xmlns":593},[595,2184,2185,2189],{},[598,2186,2187],{},[601,2188,927],{},[615,2190,927],{"encoding":617},[582,2192,2194],{"className":2193,"ariaHidden":623},[622],[582,2195,2197,2200],{"className":2196},[627],[582,2198],{"className":2199,"style":939},[631],[582,2201,927],{"className":2202},[636,637]," statt der Mantellinie ",[582,2205,2207,2220],{"className":2206},[585],[582,2208,2210],{"className":2209},[589],[591,2211,2212],{"xmlns":593},[595,2213,2214,2218],{},[598,2215,2216],{},[601,2217,798],{},[615,2219,798],{"encoding":617},[582,2221,2223],{"className":2222,"ariaHidden":623},[622],[582,2224,2226,2229],{"className":2225},[627],[582,2227],{"className":2228,"style":908},[631],[582,2230,798],{"className":2231},[636,637]," in die Mantelformel einsetzen.",[578,2234,2235,2236,2287,2288,2338],{},"Bei der Mantellinie ",[582,2237,2239,2257],{"className":2238},[585],[582,2240,2242],{"className":2241},[589],[591,2243,2244],{"xmlns":593},[595,2245,2246,2254],{},[598,2247,2248,2250,2252],{},[601,2249,609],{},[773,2251,786],{},[601,2253,702],{},[615,2255,2256],{"encoding":617},"R + r",[582,2258,2260,2278],{"className":2259,"ariaHidden":623},[622],[582,2261,2263,2266,2269,2272,2275],{"className":2262},[627],[582,2264],{"className":2265,"style":975},[631],[582,2267,609],{"className":2268,"style":645},[636,637],[582,2270],{"className":2271,"style":848},[819],[582,2273,786],{"className":2274},[852],[582,2276],{"className":2277,"style":848},[819],[582,2279,2281,2284],{"className":2280},[627],[582,2282],{"className":2283,"style":908},[631],[582,2285,702],{"className":2286,"style":726},[636,637]," statt ",[582,2289,2291,2308],{"className":2290},[585],[582,2292,2294],{"className":2293},[589],[591,2295,2296],{"xmlns":593},[595,2297,2298,2306],{},[598,2299,2300,2302,2304],{},[601,2301,609],{},[773,2303,960],{},[601,2305,702],{},[615,2307,965],{"encoding":617},[582,2309,2311,2329],{"className":2310,"ariaHidden":623},[622],[582,2312,2314,2317,2320,2323,2326],{"className":2313},[627],[582,2315],{"className":2316,"style":975},[631],[582,2318,609],{"className":2319,"style":645},[636,637],[582,2321],{"className":2322,"style":848},[819],[582,2324,960],{"className":2325},[852],[582,2327],{"className":2328,"style":848},[819],[582,2330,2332,2335],{"className":2331},[627],[582,2333],{"className":2334,"style":908},[631],[582,2336,702],{"className":2337,"style":726},[636,637]," als Kathete nehmen.",[578,2340,2341],{},"Bei offenen Gefäßen trotzdem den Deckel mitrechnen, oder bei geschlossenen Körpern einen Kreis vergessen.",{"title":2343,"searchDepth":2344,"depth":2344,"links":2345},"",2,[2346,2347,2348,2349],{"id":560,"depth":2344,"text":561},{"id":1002,"depth":2344,"text":1003},{"id":1364,"depth":2344,"text":1365},{"id":2168,"depth":2344,"text":2169},[2351,2354,2356,2359,2362],{"lhs":2352,"rhs":2353},"pi*(R + r)*s","pi*R*(s*R\u002F(R - r)) - pi*r*(s*R\u002F(R - r) - s)",{"lhs":2355,"rhs":1387},"sqrt((5 - 2)^2 + 4^2)",{"lhs":2357,"rhs":2358},"pi*(5^2 + 2^2 + (5 + 2)*5)","64*pi",{"lhs":2360,"rhs":2361},"round(64*pi, 2)","201.06",{"lhs":2363,"rhs":2364},"round(pi*(5 + 2)*5, 2)","109.96","R > r > 0","\u003Cspan class=\"katex\">\u003Cspan class=\"katex-mathml\">\u003Cmath xmlns=\"http:\u002F\u002Fwww.w3.org\u002F1998\u002FMath\u002FMathML\">\u003Csemantics>\u003Cmrow>\u003Cmi>R\u003C\u002Fmi>\u003Cmo>&gt;\u003C\u002Fmo>\u003Cmi>r\u003C\u002Fmi>\u003Cmo>&gt;\u003C\u002Fmo>\u003Cmn>0\u003C\u002Fmn>\u003C\u002Fmrow>\u003Cannotation encoding=\"application\u002Fx-tex\">R &gt; r &gt; 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