Question

find the dimension of a rectangle if its perimeter is 100cm and its length is 20 cm more than its breadth

Answer 1

$<b><i>let the breadth be x.$

therefore,length=x+20.

p=100cm

2(x+20+x)=100

4x+40=100

4x=100-40

x=60/4

x=15

$<u>therefore :</u>$

breadth=15cm

length =15+20=35cm.