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A conical frustum has bases with radii of 9 and 12 and a height of 4. The total surface area of the frustum is A, in square units, and the volume of the frustum is V, in cubic units. Find A+V. 

 Oct 16, 2021
 #1
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From the formulas for volume and surface area, A + V = 520*pi.

 Oct 16, 2021
 #2
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Wrong

Guest Oct 16, 2021

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