Question

Luas sebuah bola 616 cm² . pi= 22/7 . tentukan volume bola ...

Answer 1

Lp = 616 cm²

Lp = 4 π r²
616 = 4  . 22/7 . r²
616 = 88/7 r²
r² = 7. 616 / 88
r² = 4312 / 88
r² = 49
r = √49
r = 7 cm

Volume
= 4/3 π r³
= 4/3 22/7 7³
= 4/3 22/7 343
= 4/3 22 . 49
= 4312 / 3
= 1437,33 cm³

Answer 2

L bola =4×π×r²
616=4×22/7×r²
616×7=88×r²
4312=88r²
r²=4312/88
r²=49
r=√49
r=7cm
V=4/3×π×r³
  =4/3×22/7×7³
 =1437,3cm³