Question

The lenth of a rectangle is twice the width.If the area of the rectangle is 50 squares inch,,,Which equation can be used to find the dimensions of this rectangle??????

Answer 1

So the first equation is l = 2w. The normal equation for area of a rectangle is a = lw. In this case, the a = 50.

Just plug in the length of l = 2w into the area equation. So the equation that can be used to find the dimensions of the rectangle is:

a = 2w(w) = $2w^2$