## anonymous 4 years ago The width of a rectangle is 2 less than twice its length. If the area of the rectangle is 83 cm^2, what is the length of the diagonal?

1. anonymous

Is there a formula for finding the length of a diagonal?

2. anonymous

Hi, you still there?

3. anonymous

yes still trying to figure this out i think i ended up with $x=(2\pm \sqrt{668})/4$ then just plug that into 2x-2 because its 2 less than twice x, do i use the Pythagorean theorem to then find the diagonal?