katrina40 katrina40

04-12-2019
Mathematics

contestada

The length of a rectangle is three times it’s width.If the perimeter of the rectangle is 40m, find its area

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akiran007 akiran007

05-12-2019

Answer: let the width of the rectangle be x m then the length would be 3x m.

as perimeter =p= 2(l+b)

40= 2(3x+x)

40= 8x

x=40/8=5m

width =5m and length =15m

area= length x breadth

a= 5*15= 75metresquare

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