SOLUTION: The perimeter of a rectangle is 40 cm, and the area is 64cm squared(^2). Find the dimensions of the rectangle.

SOLUTION: The perimeter of a rectangle is 40 cm, and the area is 64cm squared(^2). Find the dimensions of the rectangle.

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Question 485247: The perimeter of a rectangle is 40 cm, and the area is 64cm squared(^2). Find the dimensions of the rectangle.
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
2L+2M=40
LM=64
2M=40-2L
M=20-L
L(20-L)=64
20L-L2=64
L2-20L+64=0
(L-16)(L-4)=0
L=16 or 4
The dimensions of the rectangle are 16 cm x 4 cm..
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