SOLUTION: A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle?

Algebra ->  Trigonometry-basics -> SOLUTION: A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle?      Log On


   

Question 972305: A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
%286%2F7%29%2818%29 cm will be pi radians of angle. This is half the circumference of the circle.

%286%2F7%2918=%281%2F2%29%282pi%2Ar%29, and find the radius.