Math, asked by rohitpoddar417, 11 months ago

The sides of rectangle are in ratio 8:7 its perimeter is 90 cm find its length

Answers

Answered by God1OfDarkness1
3

Answer:

The sides of rectangle are in ratio 8:7

its perimeter is 90 cm

length(l)/breadth(b)=8/7

l=8b/7→1

2(l+b)=90

2(8b/7+b)=90

2(8b+7b)/7=90

2/7(15b)=90

2/7×b=6

b=21cm

l=8b/7. (from 1)

l=8×21/7

l=24cm

Answered by ashutosh777879
6

Answer:

length=8x

breadth=7x

A.T.Q

2(8x+7x)=90

2*15x=90

30x=90

x=90/30

x=3

length=8x3=24cm

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