Question

To find the total number of diagonals for any given polygon, you can use the expression n(n-3) divided by 2, where n is the number of sides of the polygon

a) determine the minimum value that n could be
b) make a table of four possible values of n. then complete the table by evaluating the expression for each value of n.
c) check by drawing the diagonals of a pentagon and counting the diagonals

Answer 1

A. The minimum value of n is 5
B.
n=5 --> 5
n=6 --> 9
n=7 --> 14
n=8 --> 20

C. I'll attach the answer in the image. The diagonals aren't perfect, but you get the idea.

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