Asked by Maddiey

The length of a rectangle is three times its width.
If the perimeter of the rectangle is
48cm,find its area.
Answered by Ms. Sue
48 = 2(3W + W)

48 = 8W

6 = W

Can you take it from there?
Answered by Maddiey
no... don't know how to do it...
Answered by Ms. Sue
The width is 6 cm.
Length = 3 * 6 = 18 cm

A = L * W

A = 6 * 18 = ________ square cm.
Answered by Maddiey
it would be 108 square cm right??
Answered by Ms. Sue
Yes, you're right.
Answered by Maddiey
thx...
Answered by Ms. Sue
YW