Homework SourseThe length of a rectangle is 3 times the width if the perime
The length of a rectangle is 3 times the width. if the perimeter of the rectangle is 128 in, find its area?
The length of a rectangle is 3 times the width. if the perimeter of the rectangle is 128 in, find its area?
Solution
Let the width be x in
So, length = 3x in
Perimeter = 2 * (x + 3x)
Or, 128 = 8x
Or, x = 16 in
Width = 16 in
Length = 3 * 16 = 48 in
Area = 16 * 48 = 768 in2
