Question

A man walking at the speed of 4 kmph crosses a square field diagonally in 3 meters.The area of the field is

Answer 1

Step-by-step explanation:

Speed of man,

= 4 kmph = (4 * 5)/18 m/sec

In 3 min (180 sec) man will go = (20 * 180)/8 = 200 m.

That means the diagonal of the square field = 200 m.

Diagonal of square,

= Side of Square * √2 = 200 m.

→ Side of Square = (200/√2)

Area of Square = Side2

Area = (200 * 200)/2 = 20000 sqm.