Question

The perimeter of a rectangular red sticker is 34 millimeters. The sticker is 7 millimeters tall. How wide is it?

Answer 1

Perimiter is adding up all sides A+B+C+D.

Rectangles have two sets of parallel lines the height and the width.

If we know one of the heights is 7 the. We can conclude the parallel side is also 7

So then the total perimiter 34 minus the heights is 20.

We know that there is another set of parallel sides, remaining and 20 is how perimiter is left

… so if you divide by 2 your left with one side which is the width

Answer 10