The length of a rectangular park is twice its breadth, and its perimet

1.	The length of a rectangular park is twice its breadth, and its perimeter measures 840 m. Find the area of the park.
Answer» The length of a rectangular park = 2(its breadth) Perimeter = 840 m (Given) Let x be the breadth of a rectangular park then, length of a rectangular park is 2x m. We know, Perimeter of rectangle = 2(Length + Breadth) 840 = 2(Length + Breadth) 840 = 2(2x + x) 840 = 6x or x = 140 Breadth = x = 140 m and Length = 2x = 2 x 140 = 280 m Area of a rectangular park = Length x Breadth = 140 x 280 = 39200 m².

The length of a rectangular park is twice its breadth, and its perimeter measures 840 m. Find the area of the park.

Answer»

The length of a rectangular park = 2(its breadth)

Perimeter = 840 m (Given)

Let x be the breadth of a rectangular park then, length of a rectangular park is 2x m.

We know, Perimeter of rectangle = 2(Length + Breadth)

840 = 2(Length + Breadth)

840 = 2(2x + x)

840 = 6x

or x = 140

Breadth = x = 140 m

and Length = 2x = 2 x 140 = 280 m

Area of a rectangular park = Length x Breadth = 140 x 280 = 39200 m².