tentukan volume bola dengan jari jari 15, 21, dan 28 !
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Penjelasan dengan langkah-langkah:
a . r = 15
v = 4/3 x π x r³
= 4/3 x 3,14 x 15³
= 4/3 x 3,14 x 3.375
= 4/3 x 10.597,5
= 42.390/3
= 14.130 cm³
b . r = 21
v = 4/3 x π x r³
= 4/3 x 22/7 x 21³
= 88/21 x 9.261
= 814.968/21
= 38.808 cm³
c. r = 28
v = 4/3 x π x r³
= 4/3 x 22/7 x 28 ³
= 88/21 x 21.952
= 1.931.776/21
= 91.989,33 cm³
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