Question

the length of a rectangle is 15 metre longer than its breadth if the perimeter of the rectangle in 198 metre find its area​

Answer 1

Answer:

let the breadth be x

length= x+15

perimeter=2(l+b)

198m= 2(x+15+x)

198= 2(2x+15)

198= 4x+30

198-30=4x

168=4x

168/4=x

42= x

then breadth = 42m

length= x+15 = 42+15=57m

Answer 2

Answer:

Lenght = 57m and breadth = 42m

Step-by-step explanation:

Let the breadth be x

Perimeter = 2(x+x+15)

=198=2x+2x+30

=198=4x+30

=198-30=4x

=168=4x

=x=168/4=42

Breadth = 42m

Lenght =42+15=57m