SOLUTION: A planter box is in the shape of a square pyramid (with the top cut off), topped by a square prism of height 2cm. The width of the base is 10cm and the square prism is 20cm wide. T

Question 1118060: A planter box is in the shape of a square pyramid (with the top cut off), topped by a square prism of height 2cm. The width of the base is 10cm and the square prism is 20cm wide. The total height is 12cm. Find the volume of the entire thing to the nearest cubic centimetre.
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

The truncated pyramid has height 10; one base has area 10^2=100 and the other base has an area 20^2=400. The formula for the volume of a truncated pyramid with height h and bases B and b is

You can do the arithmetic.

The square prism top has dimensions 20x20x2. I will assume you can find its volume and thus find the total volume.
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