Question

The area of a square field is 60025 m². A man cycles along its boundary at 18 km/hr. In how
much time will he return at the starting point?
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Answer 1

Answer:

1. the area of square=4×side
2. a man cycles along its boundary at 18km/h
3. solution. = 4×18
4. =72
5. 60025m=6.25km
6. 6.25/72
7. =8.66km

Answer 2

Answer:

He will return to the starting point at 3 min 16 sec

Step-by-step explanation:

First, you need to find one side of the square.

Calculate the square root of 60025m2.

√60025=245m

Then, find the perimeter of the square.

245x4=980m

To find the time, divide distance by speed. You need to change the unit into m. 18km=18000m

Therefore, 980/18000=0.05444

0.05444x60=3.2664, approximately 3.267

267x60=16020, approximately 16.