Question 463649: a rectangle has a length of 12 inches more than twice its height. if the perimeter of a rectangle is 330 inches, find its dimensions. Answer by graphmatics(170) (Show Source):
You can put this solution on YOUR website! If L is the length of the rectangle and H is the height of the rectangle then
L = 12 + 2*H
the perimeter of the rectangle is
P = 2*L + 2*H
so 330 = 2*(12 + 2*H) + 2*H
330 = 24 + 4*H + 2*H
330 - 24 = 6*H
306 = 6*H
H = 51
So
L = 12 + 2*51
L = 12 + 102
L = 114
