SOLUTION: 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 cyli

Algebra ->  Surface-area -> SOLUTION: 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 cyli      Log On


   

Question 1158972: 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.
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
volume of prism
= (length)(width)(height)
= (7 ft)(5 ft)(4 ft)
= 140 ft^3

volume of cylinder
= (pi)(radius^2)(height)
= (pi)(3^2)(8)
= 72pi ft^3

Combine the two: 140+%2B+72pi ft^3