Question

a) A wire of length 42 cm is bent in the form of a rectangle such that its length is 3 cm more than its breadth. find the length and breadth of the rectangle so formed

Answer 1

Step-by-step explanation:

let it's breadth be x

and it's length be 3+x

perimeter of a rectangle= wire of length =42

2(l+b). =. 42

2(3+x+x)=42

2(3 +2x)=42

6+4x=42

4x=42-6

4x=36

x=36/4

x=9

breadth= 9cm

length=3+9

12cm