Question

Find the volume of the sphere. whose surface area is 314 sq.cm. (π=3.14)

Answer 1

surface area of a sphere= 4× 3.14×rsq.
Given , S.A of sphere =314
therefore
r = √314/(4×3.14) = √100/4 =√25cm=5 cm
volume of sphere =4/3×3.14×5×5×5
=1570/3
=523.4(approximate) cm^3
therefore the volume of sphere is 523.4cm cube.

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Answer 2

i think the answer is 523.33