Question

The area of square field 7200 sq. M the time taken by man to cross the field diagonally at rate of 2kmph is

Answer 1

Answer:

3.6 Minutes

Step-by-step explanation:

Area=7200sq.m

Side=√7200

side=84.85m

if the square is divided into 2 triangles...

diagonal=hypotenuse

i.e.

(84.85)(84.85)+(84.85)(84.85)=(hyp)(hyp)

i.e.

14400=HYP*HYP

HYP=√14400

=120m

speed is 2kmph i.e 2000mph

distance is 120m

time=distance/speed

=120/(2000/60)

=7200/2000

=3.6 min