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Question
Answer
If a line is tangent to a circle   then it is perpendicular to the radius drawn to the point of tangency  
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If a triangle is inscribed in a circle, and the hypotenuse is a diameter   then the triangle is a right triangle  
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If a diameter of a circle is perpendicular to a chord   then the diameter bisect the chord and its arc  
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If two chords intersect in the interior of a circle   then the product of the links of the segments of one cord is equal to the products of the lengths of the segments of the other cord  
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A central angle is congruent to   the arc inscribed between its end points  
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The measure of an inscribed angle is   half the measure of its intercepted arc  
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A quadrilateral that is inscribed in a circle   Has opposite angles that are supplementary  
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If a tangent and a cord intersect   Then the measure of the angle is half the measure of the intercepted arc  
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If two segments from the same exterior point are tangent to a circle   Then they are congruent  
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In a circle if two chords are equidistant from the center   Then they are congruent chords  
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If a tangent and a secant intersect in the exterior of a circle   Then the measure of the angle formed is half the difference of the measures of the intercepted arcs  
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If two tangents intersect in the exterior of a circle   Then the measure of the angle formed is half the difference of the measures of the intercepted arcs  
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If two secants intersect in the exterior of a circle   Then the measure of the angle formed is half the difference of the measures of the intercepted arcs  
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Created by: Claire Puig