10

Set 1: Area Volume (Advanced)

Explanation

Answer: A

PROBLEM

A cone has radius 4 and height 9. What is its volume? (Express as a number times pi)

A cone has radius 4 and height 9. What is its volume? (Express as a number times pi)

A.

48pi

✓ Correct
B.

36pi

C.

96pi

D.

144pi

Detailed Explanation

Choice A is the best answer. Volume = (1/3) times pi times r squared times h = (1/3) times pi times 16 times 9 = 48pi

Why others are wrong:
B: 36pi is incorrect because it does not satisfy the equation.
C: 96pi is incorrect because it does not satisfy the equation.
D: 144pi is incorrect because it does not satisfy the equation.

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