The volume of a sphere is 905 1/7 cm ³ Find it's radius
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Answer:
Step-by-step explanation:
Volume of sphere = 4/3 x π x r³ = 905 1/7
4/3 x 22/7 x r³ = 905 1/7
r³ = 905 1/7 x 3/4 x 7/22 = 216
r = ∛216 = 6 cm
∴ Diameter = 2 x 6 = 12 cm
Surface area of sphere = 4 x π x r² = 4 x 22/7 x 6² = 452.57 cm²
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Step-by-step explanation:
volume of sphere is 4/3r^3
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