Help with geometry

Question

I have a math project assignment. I have to find on the internet a building that consists of several geometric bodies, at least two bodies, one must be a prism or a pyramid, and another some rotating body. I have to calculate the volume, the area and by how much the volume of the object will decrease if each dimension is reduced 2 times.

Answer 1

In order to find volume of a pyramid you need to apply this formula:

1/3(b*h)

In order to find volume of a cylinder which is round apply this formula:

pi*r²*h

If its reduced by 2 you have to divide by 2.

Hope this helps.