SOLUTION: the length of a rectangle is 4 dm more than its breadth. If area of the rectangle is 192 sq.dm , find the length and breadth of the rectangle.
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Question 189339: the length of a rectangle is 4 dm more than its breadth. If area of the rectangle is 192 sq.dm , find the length and breadth of the rectangle. Answer by checkley75(3666) (Show Source):
You can put this solution on YOUR website! L=W+4 dm.
LW=192
(W+4)W=192
W^2+4W=192
W^2+4W-192=0
(W+16)(W-12)=0
W-12=0
W=12 ANS. FOR THE WIDTH.
L=12+4=16 ANS. FOR THE LENGTH.
PROOF:
12*16=192
192=192
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