Kevin S. answered • 01/22/13

Since the width is x, the length is 3 more than twice the width, or 3+2x

The perimeter is 2w + 2l = 2(x) + 2(3 + 2x) = (I'll leave for you to simplify)

For the triangle, the perimeter = side 1 + side 2 + side 3.

Therefore, x + (2x - 3) + (3x -5) = (I'll leave for you to simplify)