SOLUTION: find the length of arc C in terms of pie for if radius of the circle = 3cm

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Question 519269: find the length of arc C in terms of pie for if radius of the circle = 3cm
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
 You forgot to give the measure of the central angle
of the arc C, so I arbitrarily selected 70°.  You can redo
it using the measure you were given that you forgot to give 
here.

 


Set up the proportion:

                 %22arc_length%22%2F%0D%0A%22central_angle%22 = circumference%2F%22360%B0%22 

Since circumference = 2piŚradius

                 %22arc_length%22%2F%0D%0A%22central_angle%22 = %282pi%2Aradius%29%2F%22360%B0%22


                 C%2F%0D%0A%2270%B0%22 = %282pi%2A3%29%2F%22360%B0%22

                 C%2F%0D%0A%2270%B0%22 = %282pi%2A3%29%2F%22360%B0%22

                 C%2F%0D%0A%2270%B0%22 = %282pi%2A3%29%2F%22360%B0%22

                 C%2F%0D%0A%2270%B0%22 = %286pi%29%2F%22360%B0%22

                 C%2F%0D%0A%2270%B0%22 = %28pi%29%2F%2260%B0%22


                 C = %28%2270%B0%22%2Api%29%2F%2260%B0%22

                 C = expr%287%2F6%29pi

Edwin