Question

the long and short hands of a clock are 6cm and 4cm respectively.Find the sum of distances travelled by their tips in a day

Answer 1

here's the solution to your question

Answer 2

the length of long hand/minute hand = 6 cm

the length of short hand/hour hand = 4 cm

now,

the hour hand covers 2 complete circles in 1 day

therefore, distance = circumference

= 2$\pi$r

= 2 x $\pi$ x 4 = 8$\pi$ = 25.13 approx

the minute hand covers 24 circles in a day (1 circle for each hour)

distance= 2$\pi$r =2 x $\pi$ x 6

= 12$\pi$ = 37.69 approx

hope this helps

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