Question

the minute hand of a circular clock is 14 cm long. how far does the tip of the minute hand move in 1 hour

Answer 1

r = 14 cm
as in 1 hr a full circle is completed by minute hand
therefore
distance covered by tip in 1 hr = circumference
circumference = 2πr
= 2 * 22/7 * 14
= 44 * 2
= 88 cm
therefore the tip moves 88 cm in one hour

Answer 2

Answer:

r=14 cm

then,

=2*22/7*14

=2*22*2

=44*2

=88 cm

Therefore the tip moves 88cm in one hour