Question

The perimeter of the rectangle is 36 cm if the length is decreased by 1cm area increases by 3 sq.cm find the length and breath of the rectangle

Answer 1

Step-by-step explanation:

let the breadth is x cm

and length is (x-1) cm

perimeter of rectangle = 36 cm

2(l+b) = 36

2(x+x-1) = 36

2( 2x-1) =36

4x-2 = 36

4x = 36+2

x = 38÷4

x = 9.5

hence length is 9.5 cm

and breadth is (x-1)

( 9.5 - 1)

8.5 cm