Question

how long will a man take to make a round of a circular field of radius 21 cycling at the speed of 8 km/h ​

Answer 1

Answer:

Hey mate here's your answer.

Step-by-step explanation:

Here radius of circular field=21km

Therefore, circumference of circular field=2πr

=2*22/7*21

=132km

Now,speed of man cycling around the circular field=8km/h

Therefore the time taken by him to cycle around the circular field=Circumference/speed of cycling

(as time=distance/speed)

=132/8

=16.5 hours

=16 hours 5 minutes

Hope it helps you.

Please mark it as brainliest.

Answer 2

Answer:

Step-by-step explanation:

Here