Question

the minute hand of a circular clock is 15cm long.how far does the tip of the minute hand move in 1 hour. (take =3.14

Answer 1

in 1 hr the clock will complete 1 rotation

length of the minute hand of clock=radius of clock=15cm

circumference=2πr
=2×3.14×15cm
=94.2

therefore,
the tip travels 94.2cm in 1 hour.

Answer 2

in 1 hr the clock will complete 1 rotation

length of the minute hand of clock=radius of clock=15cm

circumference=2πr

=2×3.14×15cm

=94.2

therefore,

the tip travels 94.2cm in 1 hour.