Question

A minute hand of a clock is 7 cm. Find the distance travelled by its tip in 16 hours.

Answer 1

Answer:

The radius of path traveled by tip of the hand (r)= 7 cm

Now,

Circumference(C)= Distance traveled by the tip in one minute =2πr

                                                                                                       = 44 cm

Distance traveled in 16 hours= C * 16 * 60

                                                =42240 cm

Answer 2

radius = 7cm

circumference =2 pie × radius

=2×22/7×7

=44cm

1 hour is 60 minutes

16 hours is 960 minutes

=44×960

= 42,240 cm