In a parallelogram the ratio of adjacent sides is4:5 and its perimeter is 72 cm.Find the sides of parallelogram
aarpitaa:
let the angles be x then the sum of adjacent angles =180degree so 2 (l+b)=72 so 2(4x+5x)= 72 2 (9x)=180 , 18x=72,x=4
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Let the sides be 4x and 5x
A.T.Q.
2(4x+5x)=72
2×9x=72
18x=72
x=72÷18=4
A.T.Q.
2(4x+5x)=72
2×9x=72
18x=72
x=72÷18=4
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