Homework Help: trig

Posted by minh on Saturday, May 7, 2011 at 5:10pm.

2. A circle has a radius of 10 centimeters. Find the length, in centimeters, of the arc
intercepted by a central angle of 100 degree.
(A) 50pi/9 (B) 100pi/9 (C) 500pi/9 (D) 18pi/5 (E) None of the above.

trig - Henry, Sunday, May 8, 2011 at 12:17pm
C = pi*dia = pi*20 = 20pi cm.

Arc = (100/360) * 20pi = 5.6pi = 50pi/9
trig - Jerry, Saturday, October 6, 2012 at 7:01am
(E) none of the above

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