Question

Length of a rectangle is thrice that of its breadth . Perimeter of a rectangle is 80 meters . Find the length and breadth of rectangle.

Answer 1

Answer:

Perimeter = 80 m

let the breath be x

and length be3x

Perimeter = 2( l+b)

80= 2( 3x+x)

80 = 2 (4x )

80/2 = 4x

40 = 4x

40/4 =x

10=X

Therefore,length= 3 × 10 = 30m

and breadth = 10 m