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| Fill in the blank: The line containing the center of a circle perpendicular to a chord _________ the chord. | Answer: bisects |
| The line containing the center of a circle and the midpoint of a chord ___________ the cnetral angle determined by the chord. | Answer: bisects |
| The bisector of the central angle of a chord is perpendicular to the _________ and __________ the chord. | Answer: chord and bisects |
| The perpendicular bisector of a chord of a circle contains the __________ of the circle. | Answer: center |
| In a cicle or two(2) congruent circles, if two(2) arcs have the same measure, they are congruent and their __________ are congruent. | Answer: chords |
| In a circle, if two(2) chords have the same lenght, their _______ arcs have the same measure. | Answer: minor |
| An angle is an"inscribed angle" in a circle if and only if the vertex angle is on the __________ . | Answer: circle |
| An angle is an "inscribed angle" in a circle if and only if each side of the angle __________ the circle at a point other than the vertex. | Answer: intersects |
| In a circle, the measure of an inscribed angle is __________ the measure of its ___________ arc. | Answer: one-half; intercepted |
| An angle inscribe in a semicircle is a ____________ . | Answer: right angle |
| A line that intersects a circle at only exactly one point is a __________ line. | Answer: tangent |
| The measure of an angle formed by a tangent and a chord is _________ the measure of the intercepted arc. | Answer: half |
| A radius drawn to the point of tangency is _____________ to the tangent line. | Answer: perpendicular |
| A ___________ is a line tha intersects a circle in two points | Answer: secant |
| The measure of an angle formed by two(2) intersecting chords is ____________ the sum of the measure of the arcs intercepted by it and its vertical angle. | Answer: one-half |
| The measure of an angle formed by two(2) secants intersecting outside a circle is ________half of the __________ of the arcs intercepted by it. | Answer: half; difference |
| The measure of the angle between two(2) tangents, or between a tangent and a secant, is ________ the ___________ of the intercepted arcs. | Answer: half; difference |
| Suppose one secant intersects a circle at A and B, and a second secant intersects the circle at C and D. If the secants intersect at P, then _______ times _______ equals _______ times _______ . | Answer: AP; BP; CP; DP; |
| The power of point P for circle O is the _________ of the length of a segment tangent to circle O from P. | Answer: squared |
| An angle with its vertex at the center of the circle is a ____________ angle. | Answer: central |
| Any polygon whose vertices lie on a given circle is called an ___________ polygon. | Answer: inscribed |
| The arc that is less than 180 degrees in a circle is called the ____________ arc. | Answer: minor |
| The arc that is more than 180 degrees in a circle is called the ___________ arc. | Answer: major |
