madisonspangler130 madisonspangler130

07-08-2018
Mathematics

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The length of a rectangle is 3 times it's width. If the perimeter of the rectangle is 144cm. Find it's area

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lesliekolleroxrkcf lesliekolleroxrkcf

07-08-2018

let w=width
3w=length
perimeter= w+w+3w+3w=8w=144
w= 18
l=54
area=972

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