Describe 45701

The minute hand of the alarm clock is 3.5 cm long. How long will the tip of the hand describe in 1/2 hour?

Correct answer:

x =  10.9956 cm

Step-by-step explanation:

r=3.5 cm k=21=0.5  o=2π r=2 3.1416 3.521.9911 cm  x=k o=0.5 21.9911=10.9956 cm

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