Asked by Shay

The length of a rectangle is three times its width. If the area of the rectangle is 300cm, find its perimeter.
Answered by MathMate
Let width, W=3L (length)
Area, A = W*L = 300
Substitute W=3L
(3L)*L = 300
L²=300/3=100
L=?
Answered by Henry
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