SOLUTION: The minute hand of a clock is 7 inches long. How far does the tip move in 20 minutes? In class we are working on radians and pie. Thank you so much, I just need a refresher on how

Question 533710: The minute hand of a clock is 7 inches long. How far does the tip move in 20 minutes? In class we are working on radians and pie. Thank you so much, I just need a refresher on how to find the answers on questions like these!So please explain how you got the answer you did. So I can apply your way to the rest of my hw. Thanks again.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
The minute hand of a clock is 7 inches long. How far does the tip move in 20 minutes? In class we are working on radians and pie. Thank you so much, I just need a refresher on how to find the answers on questions like these!So please explain how you got the answer you did. So I can apply your way to the rest of my hw.
**
In one hour or 60 minutes the minute hand makes one revolution which in distance is equal to the circumference which is equal to 2π*radius=2π*7=14π.
However, in 20 minutes you only went 20/60 or 1/3 of a revolution in which the tip of the minute hand traveled 1/3 of the circumference=14π/3≈14.66 inches.
Calculations:
Circumference=2πr=2π*7≈43.98
1/3 of circumference=2π*7/3≈14.66 inches
ans: The tip of the minute hand moved ≈ 14.66 inches
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