Question

The length of minute hand of a circular watch is 20 cm. How much distance does tip of minute hand cover in 1 hour? ( π = 3.14).​

Answer 1

In 1 hour, minute hand completes one round means makes a circle.

Radius of the circle (r) = 20 cm

Circumference of circular clock = 2πr

= 2 x 3.14 x 20 = 25.6 cm

Therefore, the tip of the minute hand moves 25.6 cm in 1 hour.

Answer 2

Answer:

see the attachment above