Question

the perimeter of a rectangle is 90 cm and length is 3/2th of the breadth find the area​

Answer 1

Answer:

Perimeter of Rectangle = 2*(L+B)

Where , L = length and B = width

Given , Perimeter of Rectangle (P) = 90 cm

And, Length (L) = 27 cm

Therefore , P = 2*(L+B)

90 = 2*(27 + B)

45 = 27 + B

45 - 27 = B

B = 18 cm

Thus , width of Rectangle is 18 cm

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

let the breadth= x

therefore l= 3/2x

perimeter= 2(l+b)=90

2(x+3/2x)=90

2x+3x=5x=90

x=18

b=18

l=27

area= 18×27=486 sq cm