Question

The minute hand of a clock is 2.8 m long. How far does the tip of the hand move in 1 hr ?

Answer 1

Answer:

1 hour represents one revolution of the minute hand of an ordinary clock faceone hour area

= pi x 0.21 x 0.21 m^2 = 0.1385 m^2 or 1385.4 cm^2