SOLUTION: The length of a rectangle is 8 cm mor than 3 times its width. the perimeter of the rectangle is 64 cm.
B. What is the area of the rectangle?
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-> SOLUTION: The length of a rectangle is 8 cm mor than 3 times its width. the perimeter of the rectangle is 64 cm.
B. What is the area of the rectangle?
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Question 112279: The length of a rectangle is 8 cm mor than 3 times its width. the perimeter of the rectangle is 64 cm.
B. What is the area of the rectangle? Answer by checkley71(8403) (Show Source):
You can put this solution on YOUR website! LENGTH=3W+8
PERIMETER=2L+2W
64=2(3W+8)+2W
64=6W+16+2W
8W=64-16
8W=48
W=48/8
W=6 ANSWER FOR THE WIDTH.
L=3*6+8
L=18+8
L=26 ANSWER FOR THE LENGTH.
PROOF
2*6+2*26=64
12+52=64
64=64
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AREA=L*W
AREA=26*6
AREA=156 CM^2
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