Area of a Pentagonal PyramidDate: 11/16/95 at 21:21:35 From: class Subject: Pentagonal pyramid I would like to know the area of a pentagonal pyramid. The dimensions of the sides of the base are 5cm ea. and the height is 23cm. Thanks Brad Hayes Date: 11/19/95 at 14:32:51 From: Doctor Ethan Subject: Re: Pentagonal pyramid You say that you are looking for the area of a pentagonal pyramid. Do you mean the surface area or do you really mean volume? If you mean volume you are going to have to us the formula for pyramids: V = 1/3 (Area of the Base)*(Height) If you are looking for the surface area, then you will need to figure out the area of each of the faces. (five triangles and then the bottom pentagon). I hope this helps. If you already knew all this and were having trouble figuring out the formulas, please write back to us. -Doctor Ethan, The Geometry Forum |
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