Question

The surface area of a ball is 576 pi square millimeters. What is the ball’s radius? Recall the formula S A = 4 pi r squared. 12 millimeters 14 millimeters 24 millimeters 48 millimeters

Answer 1

The answer is 12 millimeters

Explanation:

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Answer 2

r = 12 millimeters

Explanation:

Surface area of a ball = 4πr²

Surface area of a ball = 576 pi square millimeters

Surface area of a ball = 4πr²

576π = 4πr²

r² = 576π / 4π

r² = 144

Find the square root of both sides

√r² = √144

r = 12

r = 12 millimeters