Question

3. The length and the breadth of rectangular field are 240 m and 180

m respectively. It is fenced with three rounds of a rope. Find the

length of the rope.​

Answer 1

Answer:

Perimeter of rectangular field = 2(l+b)

=2×420

=840

The Perimeter of rectangular field is 840

So,farm need 840 m long rope to fence the field 1 time total rope need to fence the field 3 times

= 840×3

= 2520 m

Answer 2

Question :

The length and the breadth of rectangular field are 240 m and 180m respectively. It is fenced with three rounds of a rope. Find the length of the rope.

Given :

• Length of the rectangular field = 240m

• Breadth of the rectangular field = 180m

To find :

• Length of the rope.

Answer :

We know that,

• Perimeter = 2 ( l × b ).

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 2 ( 240 × 180)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 2 ( 420)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 840 m

• Length of rope = 3 × perimeter

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀= 3 × perimeter

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀= 3 × 840

Length of the rope = 2520m