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Chord and Tangent Conjectures
Chord Central Angles Conjecture
If two chords in a circle are congruent, then they determine the two central angles are congruent
Chord Arc Conjecture
Two congruent chords in a circle intersect two congruent arcs.
Perpendicular to Chord Conjecture
The perpendicular segment from the center of a circle to a chord is the bisector of a chord
Chord distance to center Conjecture
Chords equidistant from the center of a circle are congruent
Perpendicular Bisector of a chord Conjecture
The perpendicular bisector of a chord passes through the center of a circle
A tangent to a circle is perpendicular to the radius at the point of tangency
Tangent Segments Conjecture
Tangent segments to a circle from a point outside the circle are congruent