Question

Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 inches wide. How much ribbon does mark need?

Answer 1

You are looking for the perimeter, so you need to add 11+11+7+7. That equals 36.

Answer 2

You need to know the perimeter or this because he want to wrap the ribbon around the frame. 11(2)+7(2)= 22+14 36 Mark needs 36 inches of ribbon.