laishaaa laishaaa

23-11-2016
Mathematics

contestada

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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DudeMagic DudeMagic

23-11-2016

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

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grapril grapril

23-11-2016

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

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