Question

the perimeter is 100 om free
8. The length of a rectangle is 20 cm more than its breadth if the perimeter is 100 cm,find
the dimension of the rectangle,​

Answer 1

Answer:

let b=X

l=20+X

p=2×(l+b)

100=2×(20+x+x)

100÷2=20+2x

50=20+2x

50-20=2x

30=2x

X=30÷2

x=15

b=15

l=20+15=35