Question

I’ve been stuck on this for 3 hours and got 4 different answers...

Question: Find the exterior perimeter of the shape below. (hint: do not count the line in the middle of the shape)

Answer 1

`14x-8`

Explanation:

The sides for the square are equal to 2x-5 because that is the square root of the area. The length of the rectangle is 3x+6 and the width is 3x-6 because that is what you get when you factor the equation.

Now, you have add them up.

`4(2x-5)+2(3x-6)+2(3x+6)\\`

To take out the line in the middle of the shape we will subtract
`2(3x-6)` because we are assuming that this equation is equal to the shorter side. This makes the equation

`4(2x-5)+2(3x-6)\\14x-8`

If you are looking for a numerical answer, I can't say I know how to get it.

Hope this helps! <3