Question

the minute hand of a circular clock is 15 c.m long. how for does the tip of the minute hand move in 1 hour (/pie=3.14)

Answer 1

One hour means one revolution, so angle covered is 360° 3.14×15×15=706.5

Answer 2

The minute hand of a circular clock is 15 c.m long.
So moving 1 hr means to complete one circumference
D= 15 , r = 7.5
C = 2pi r
C= 2 × 3.14 × 7.5
C = 47.1 cm

So it will move 47.1 cm in 1 hr

HOPE THIS HELPS YOU