Question: Give the perimeter of the figure ... a regular 17-gon with side length 4.5cm.

I have a test tomorrow how do I solve this problem?

Define perimeter first.

It's the total length of the outline (or outside) of a shape.

So ... 17-gon means 17 sides, each side with length 4.5.

All you have to do? Add 4.5 by itself 17 times! Or, just multiply 4.5 by 17.

4.5 x 17 = 76.5

Perimeter: 76.5