The length of the rectangle is three times it's width. The perimeter is 84 m find the length of rectangle
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31.5is the measurements of length
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let breadth=x
length=3x
perimeter of rectangle =2(l+b)u
84=2(3x+x)m
84=2*4x
84=8x
84/8=x
10.5=x
b=x=10.5m
l=3x=31.5m
length=3x
perimeter of rectangle =2(l+b)u
84=2(3x+x)m
84=2*4x
84=8x
84/8=x
10.5=x
b=x=10.5m
l=3x=31.5m
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