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What is the surface area of a cylinder stacked on top of a rectangular prism. If the length of the prism is 7ft, the width is 5ft, and the height is 4ft. And the height of the cylinder is 8ft and the diameter of the cylinder is 6ft. What is the volume of this 3D composite solid.
in Mathematics by Diamond (75,918 points) | 45 views

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The volume of the prism = (length)(width)(height)

$=(7 ft)(5 ft)(4 ft)$

$=140 ft^3$

Volume of cylinder = $\pi \times r^2h$

$=\pi 3^28$

$72\pi ft^3$

Adding the two gives:

$$140 + 72\pi ft^3$$
by Diamond (75,918 points)

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