Give the proof that the measure of central angle is equal to the measure of its intercepted arc.
Any suggestions and help are greatly appreciated. Thank you so much!
Prove that the measure of central angle is equal to the measure of its intercepted arc.
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geometry
problem-solving
solid-geometry
plane-geometry
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1OK, but then the radius is $1$. – 2017-02-19
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0Not clear what you are asking. The [definition of the *radian*](https://en.wikipedia.org/wiki/Radian) is: "*The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends*". If you use a different definition for "***the measure of central angle***" then you should spell that out in the the question itself. – 2017-02-19