established in class that there were several formulas for determine the number of faces,edges and vertices for pyramids. Using a pentagonal pyramid as an example tell me: a) the formula for the number of faces and why it works b) the formula for the number of edges and why it works c) the formula for the number of vertices and why it works

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.2: Pyramids, Area, And Volume
Problem 13E
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We established in class that there were several formulas for determine the number of faces,edges and vertices for pyramids. Using a pentagonal pyramid as an example tell me:

a) the formula for the number of faces and why it works

b) the formula for the number of edges and why it works

c) the formula for the number of vertices and why it works

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