find the volume of a sphere whose surface area is 154 cm square if you are boy or girl tell me the correct answer
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Answered by
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Answer:
CSA = 4πr2
154= 4 × 22/7 ×r2
154 - 88/7 = r2
1078/7 - 88/7 = r2
990/7 = r2
141.43 =r2
r = √141.43
r = 11.89 cm2
Volume of sphere = 4/3πr3
= 4/3 × 22/7 × (11.89)3
= 7019.83cm3
Answered by
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Step-by-step explanation:
surface area 4x22/7xr2
r2 =154x7/4x22
r2= 49/4
= 7/2
= 3.5 cm
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