Question

The length of a minute hand of a wall-clock is 10.5 cm. Find the distance covered
by tip of minute hand in 2 hours.​

Answer 1

Step-by-step explanation:

If we consider the clock as a circle,then the length of the minute hand can be considered as the radius of the circle.We can use S = r{theta} to solve this problem.

{theta} = 2{pi} radians since minute hand goes a full circle within an hour.

r = 10.5 cm

Hence , S = 2 * 3.14 * 10.5 and this will give you the answer 65.94 cm.

Answer 2

If we consider the clock as a circle,then the length of the minute hand can be considered as the radius of the circle.We can use S = r{theta} to solve this problem.

{theta} = 2{pi} radians since minute hand goes a full circle within an hour.

r = 10.5 cm

Hence , S = 2 * 3.14 * 10.5 and this will give you the answer 65.94 cm.