SOLUTION: The minute hand of a clock is 4 inches long. How far does the tip of the minute hand move in 45 minutes?

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Question 674425: The minute hand of a clock is 4 inches long. How far does the tip of the minute hand move in 45 minutes?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The minute hand of a clock is 4 inches long.
How far does the tip of the minute hand move in 45 minutes?
:
A minute hand travels 360 degrees in 60 min, therefore
:
Find the circumference of a circle with a radius of 4 inches
Multiply by 3/4 of an hr
2%2Api%2A4 * 45%2F60 = 18.85 inches