# A length of rectangle is 20 cm more than its breadth .if perimetre is 100cm find dimension of rectangle

2
by jitesh1

2015-10-30T14:03:51+05:30

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Let the breadth be x. Length= x+20 cm. Perimeter of rectangle=100cm. 2 (length+breadth)=100cm. 2 (x+20 +x)= 100cm. 2 (2x+20 cm)=100cm. 4x+40=100cm. 4x=100cm-40cm. x=60/4. x=15cm. Length=x+20=15+20=35cm. Breadth=x=15cm. Hope this helps you
2015-10-30T14:04:01+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
let breath be x
length=20+x
perimeter=100
formula= 2(l+b)
100 =2(20+x+x)
100=40+4x
4x=60
x=15 cm
length=20+x
=20+15=35 cm
so length=35cm and breath =15 cm

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