Q.

A stable owner has four horses. He usually ties these horses with 7 m long rope to pegs at each corner of a square shaped grass field of 20 m length, to graze in his farm. But tying with rope sometimes results in injuries to his horses, so he decided to build fence around the area so that each horse can graze.

Based on the above information answer the following questions:

 

(i) Find the area of the square shaped grass field.

1 200 m2  
2 400 m2  
3 100 m2  
4 250 m2  

Ans.

(2)

Area of the square shaped grass field =20 m×20 m=400 m2