Answers

2014-11-19T18:06:12+08:00
Since it is a ball, then you're looking for the surface area of it.
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The surface area of a sphere is defined by the formula:
A = 4πr²
Substituting r=15 cm, you'll have the area as:
A = 4π(15cm)²
A= 900π cm²
or in decimal
A= 2,827.43 cm²
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