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Note: Figure not drawn to scale.
|Question 21Math
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In the figure, a hollow steel pipe is in the shape of a right circular cylinder. The steel pipe has an outside diameter of 48 inches, a wall thickness of 85 inches, and a height of 144 inches. Which of the following is closest to the volume, in cubic inches, of the wall of this steel pipe?
177
A
565
B
2,160
C
13,395
D