Minute hand

What is the distance the clock's minute hand travels in 12 minutes if the clock's diameter is 30 cm and the hand extends to a distance of 2 cm from the edge of the clock?

Correct answer:

x =  16.3363 cm

Step-by-step explanation:

k=6012=51=0.2  D=30 cm d=2 cm  R=D/2=30/2=15 cm r=Rd=152=13 cm  o=2π r=2π 13=2 3.1416 1381.6814 cm  x=k o=51 o=0.2 81.6814=16.3363 cm



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