Mathematics

Question

The garage shown is a composite of more than one shape. Which of these would be a correct way to find its volume?

A. add the volume of a rectangular prism to the volume of a triangular prism.
B. add the volumes of a rectangular prism and a pyramid
C. find the volume of a pyramid
D. find the volume of a rectangular prism
The garage shown is a composite of more than one shape. Which of these would be a correct way to find its volume? A. add the volume of a rectangular prism to th

1 Answer

  • B - Add the volumes of a rectangular prism and a pyramid

    If you look at the diagram, you can see it is a pyramid roof on top of a cuboid room.
    The cuboid is a rectangular prism as it has the same cross section throughout its length. The top part however does not and so it is a pyramid not a triangular prism.
    Therefore to get the volume of the whole thing, you just add the volumes of the 2 parts together.
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