Question

a rectangular field has an area 28800m.sq. its length is twice as long as its width. what is the length of its sides?

Answer 1

let breadth of the rectangular field be x metre.

then length be 2x metre.

now,area of rectangle =length×breadth
so,ATQ

2x×x=28800.

2x^2=28800.

x^2=28800/2

x^2=14400.

x=root under 14400

x=120

therefore breadth of the field =120m.

and length of the field =120×2=240m.

Answer 2

Hey Friend !
Breadth = b

Length = 2b

Area of a rectangle = length x breadth
                               = 2b x b 
                               = 2b²
2b² = 28800m²

b² = 28800 /2

b² = 14400

b = √ 14400

b = 120 m

Length = 2b = 2× 120 = 240 m