the radius of circle c is 16 units long. find the lenght of an arc that has a measure of 270. round to the nearest hundreth. i need to answer this question. i don't want the answer but i was wondering if someone could give me the formula i need to set this up.
math - Reiny, Thursday, May 21, 2009 at 7:48pm
did you mean the arc with a central angle of 270 degrees ?
if so, find the circumference which is 2pi(16)
then take 3/4 of that
since 270 degrees is 3/4 around the circle.
math - Anonymous, Thursday, May 21, 2009 at 8:26pm
thats exactly what i needed. thank you very much