Length and breadth of a rectangle are in the ratio 5:4. Find its perimeter if its area is 180 cm² ?

– by 0

A. 98 cm
B. 12 cm
C. 54 cm
D. 27 cm

Let the length and breadth be 5x cm and 4x cm.
5x*4x=180
20x²=180
x²=9,x=3 Length = 15cm Breadth = 12cm Perimeter
= 2(l+b)
= 2*27

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