Question

the minute hand of a clock is 3.5 cm long. What distance will it's tip cover in 1 hour​

Answer 1

Answer:

The length of the minute hand is equal to the radius of the circle the minute hand sweeps ⇒ 60 mins = πr^2

⇒ 20 mins = πr^/3

substituting the values r = 3.5 cm

⇒πr^/3 = 12.828 cm^2

Answer 2

3.5 cm is the answer