Question

The width of a triangle is represented by 5 +2y. The length is twice as long as the width. What is the perimeter of the rectangle? Select all correct expressions.

Answer 1

6(5+2y)

Explanation:

We have width = w = 5+2y

L = length of the rectangle

Length has been give to be 2 x width

Width = w

So l = 2w

Perimeter of a rectangle = 2(l+w)

Since l = 2w, we have

2(2w+w)

= 2(3w)

= 6w

So since we already know w = 5+2y

We put this value into 6w

Then we will have this expression:

P = 6(5+2y)