P-Will Posts: 1, Reputation: 1 New Member #1 Feb 10, 2009, 11:49 AM
True or false
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 Posts: 12,131, Reputation: 1307 Expert #2 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.

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