Question

If ant that moves 2.2cm per second , how long will it take to go round a circle of radius of 7 cm ?

Answer 1

Answer:

Distance = circumference of circle

=2πr

=2×(22/7)×7cm

=44cm

Speed=22cm/s

=distance/time=2.2cm/s

=44cm/time =2.2cm/s

=time=44cm/(2.2cm/s)

=time=20s

Thus, the ant will take 20 seconds to go round the circle.