Question

15. Length of a rectangle is two times its breadth. Perimeter of the rectangle is 72 unit
Find the length and breadth of the rectangle.​

Answer 1

Answer:

Let the breadth of rectangle be b

Let the length of rectangle be l

Therefore l=2b

Perimeter of rectangle = 2*(length+breadth)

=2*(2b+b)=2*3b=6b

Perimeter = 72 meter

Therefore 6b=72 meter

b=72/6=12 meter

Therefore the breadth of rectangle is 12 meter

Answer 2

Answer:

let the breadth be x so the length will be 2x

perimeter=2(l+b)

=2(x+2x)

=2×3x

=6x

6x=72

x=72/6

=12

2x=2×12=24