Question 17
The minute hand of a circular clock is 15 cm long. How far does the tip of the minute hand move in 1 hour?
(Take π=3.14)
In 1 hour, minute hand completes one round means makes a circle.
The radius of the circle (r) = 15 cm
Circumference of circular clock = 2πr
2×3.14×15 = 94.2 cm
Therefore, the tip of the minute hand moves 94.2 cm in 1 hour.