Question

The length of a rectangle exceeds its breadth by 9 cm . If the length and breadth are each increased by 3 cm , the area of the new rectangle will be 84square cm more than that of the given rectangle. Find the length and breadth of the given rectangle

Answer 1

Answer:

length= 8cm and breadth= 17cm

Step-by-step explanation:

Let x be length of rectangle and x+9 be breadth .

Area= l*b= x*(x+9)

Given condition :

(x+3)(x+9+3)=x(x+9)+84

x^2+15x+36=x^2+9x+84

15x-9x=84-36

6x=48

x=8 cm

so length= x= 8 cm

breadth= x+9= 8+9=17cm

Answer 2

It may help you

♡Thank you♡