posted by nancy on .
the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. The length of rectangle z is 5 inches and the width is 3 inches. Explain how you can find the length and width of rectangle y.
Py = Pz = (2 * 5) + ( 2 * 3)
write the equation for the perimeter of y using the length and width
(2 * Ly) + (2 * Wy) = Py = Pz
write the equation for the area of y using the length and width
Ly * Wy = Ay = Py = Pz
you now have two equations with two unknowns that you can solve simultaneously