Question

2.
If Gabby wants to make a regular octagon with a side length of 20 inches using wire, how m
uch wire does she need? Gabby would need 160 inches of wire. Is it proportional?

Answer 1

Answer:

$wire \: need = perimeter \\ = n \times a \\ p \: is \: directly \: proportional \: to \: a \\ because \: n \: = constant = 8$