Question

If Gabby wants to make a regular octagon with a side length of 20 inches using a wire how much wire does she need? Justify your reasoning with an explanation of whether permeter is proportional to the side length.

Answer 1

Answer: 160 inches.

Step-by-step explanation:

If an octagon has 8 sides and the side length is 20 inches, 20 x 8 = 160 inches. That means she needs 160 inches of wire.