the width of a rectangle is three fourth the length if the perimeter is 84cm find the length and width
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Answer:
24 cm,18cm
Step-by-step explanation:
length = l
width = 3/4l
perimeter = 84
2(l+b) = 84
2(l+3/4l)=84
7/2l=84
l = 24 cm
then, width = 3/4×24 = 18 cm
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