Question

The breath of a rectangle is 15 m less than its length . The perimeter of the rectangle is 430 m. Find the area of the rectangle.​

Answer 1

Answer:11500 Meter sq.

Step-by-step explanation:length =l

Therefore breadth=l-15

Applying the formula for perimeter:

2(l+l-15)=430

2l-15=215

2l= 230

l=230÷2

l=115

So, b=115-15=100

Now we will take out the area:

L*B

115*100= 11500m sq.

Answer 2

Step-by-step explanation:

let

length = x

breadth = x-15

perimeter = 2(l+ b)

430m=2(x+x-15)

430m= 2(2x-15)

430/2=2x-15

215= 2x-15

215+15 = 2x

230=2x

230/2= x

x=115

length = x=115

breadth = 115-15

= 100

area = length x breadth

= 115 x 100

= 11500 m square