Question

the volume of sphere is 792/7 cm3 . determine its diameter

Answer 1

vol of sphere is 4/3 π r³
so, 4/3 x 22/7 x r³ = 729/7

= 4.18 r³ = 104
r³ = 104 ÷ 4.18
= 24.88

r³ = 24.88
r = 2.91 cm
and, diameter is 2.91 x 2

D = 5.82 cm

Answer 2

volume of sphere=4/3πr^3
4/3πr^3=792/7
πr^3=729×3×÷7÷4÷
r^3=729×3×7÷28÷22
r^3=27
r=3
radius of the sphere=3
diameter =2r=6cm