Question

The length of a rectangle is 4 times its breadth. If the perimeter of the rectangle is 80 m, find the
length and breadth of the rectangle.

Answer 1

Step-by-step explanation:

let the breadth = x

hence. length = 4x

perimeter of rectangle = 2( l+b)

80 m = 2 ( x + 4x)

80 m = 10x

x = 8 m

length = 4x = 4×8 = 32m

breadth = x = 8 m

Answer 2

Answer:

Let the breadth(b) of rectangle be x

Length(l) of the rectangle= 4x

Perimeter of the rectangle =80m.

Formula for perimeter of rectangle=2×(l+b)

EQUATION:-

80m= 2×(4x+x)

80=2×(4x+x)

80=2×(5x)

80=10x

80/10=x

8=x

x=8

:.Breadth of rectangle=x=8m.

:.Length of rectangle=4x=4×8=32m.