Find the surface and volume of sphore who diameter is 21 cm?
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Answer:
Step-by-step explanation:
Surface =
21/2 10.5 cm Surface area of sphere = 4πr² ⇒ [4 X 22/7 X (10.5)²] ⇒1386cm² Therefore, the surface area of a sphere having diameter 21 cm is 1386 cm².
Answered by
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surface area = 1385.4423602331 cm²
volume = 4849.0482608159 cm³
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