Question

the perimeter of a rectangle is 42cm If one side is taken as x find the another side

Answer 1

perimeter of rectangle

=2(l+b)=2(x+b)=42

=2x+2b=42

=x+b=42/2

= x+b=21

b=21-x

Answer 2

Answer:

pls refer this pic

Step-by-step explanation:

I hope it helps u