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a conical frustum has one base with a radius of 9, and the other base has a radius of 12. The height of the frustum is 4. Let A be the total surface area of the frustum, in square units. Let V be the volume of the frustum, in cubic units. Find A + V.

 Mar 24, 2020
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774 pi is the answer 100 percent correct!!

 Mar 24, 2020

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