Question

The sides of a rectangle are in the ratio 5: 4. If its perimeter is 72 cm, Find its area​

Answer 1

Answer:

$\huge\bf{Answer :}$

${\bigstar}$ since ratio of length and breadth is 5:4

now let 5x is length and 4x is breadth

according to the question,

perimeter=72=2(5x+4x)=2(9x)=18x

18x = 72

x = 72/18 = 4

then length= 5x = 5*4= 20 cm

breadth = 4 x = 4*4 = 16 cm

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Answer 2

Answer:

area is 320cm²

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