Log in

View Full Version : True or false


P-Will
Feb 10, 2009, 11:49 AM
True or false: In a unit circle, the radian measure of a central angle and the length of the intercepted arc are equal.

True or false: In a unit circle, the degree measure of a central angle and the length of the intercepted arc are equal.

ebaines
Feb 10, 2009, 12:09 PM
You should learn and memorize that the arc length s is equal to:


s = R \theta


where \theta is the angle measured in radians.

Further, to convert an angle measurement from radians to degrees multiply radians by 180 /\pi

You now have enough information to answer thee questions yourself.