The only type of angle that has the same measure as its intercepted arc is the _____ angle.
In a circle, if two chords are congruent, then their _______ _______ are congruent.
Concentric circles have the same _____.
A radius drawn to the point of tangency is _____ to the tangent.
A radius of a circle is defined to be a segment with the _____ as one endpoint and the other endpoint on the ______.