SOLUTION: The circumference of a circle is 15π inches. Find the length of an arc of 90 degrees. Leave answer in terms of π.
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Question 276931: The circumference of a circle is 15π inches. Find the length of an arc of 90 degrees. Leave answer in terms of π. Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,
Since we know the circumference of a circle 15 pi and 90 degrees is 1/4 of the circle we divide 4 into the circumference to get:
15/4(pi) inches long or rewritten as:
3 3/4 pi
Make sense?
RJ www.math-unlock.com
