P = Perimeter
W = Width
L = Length
P = 2 W + 2 L
36 = 2 * 4 + 2 L
36 = 8 + 2 L Subtract 8 to both sides
36 - 8 = 8 + 2 L - 8
28 = 2 L Divide both sides by 2
28 / 2 = 2 L / 2
14 = L
L = 14 in
The perimeter of a rectangle equals the sum of the lengths of its four sides. If the width of a rectangle is 4 inches and its perimeter is 36 inches, find the length of the rectangle.
The length of the rectangle is ?
My answer was 144, is this correct?
2 answers
never mind -worked it out!!