The length of a rectangle is three times its width . if the perimeter of the rectangle is 40 cm find its area

asked Jul 10, 2017 153k views

1 vote

the length of a rectangle is three times its width . if the perimeter of the rectangle is 40 cm find its area

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2 votes

3w+3w+w+w=8w ... 40/8=5 ...w=5 l(3w)=15 ... 5x15=75 so the area is 75

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6 votes

Divide 40 by 4 =10 3 times the width of the length = 30 30 times 10 = 300

Educampver answered Jul 14, 2017

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