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14 Cards in this Set

  • Front
  • Back
Chord Central Angles Conjecture
If two chords in a circle are congruent, then they determine two central angles that are congruent.
Chord Arcs Conjecture
If two chords in a circle are congruent, then their intercepted arcs are congruent.
Perpendicular to a Chord Conjecture
The perpendicular from the center of a circle to a chord is the perpendicular bisector of the chord.
Chord Distance to Center Conjecture
Two congruent chords in a circle are equally distant from the center of the circle.
Perpendicular Bisector of a Chord Conjecture
The perpendicular bisector of a chord passes through the center of the circle.
Tangent Conjecture
A tangent to a circle is perpendicular to the radius drawn to the point of tangency.
Tangent Segments Conjecture
Tangent segments to a circle from a point outside the circle are congruent.
Inscribed Angle Conjecture
The measure of an inscribed angle in a circle is half the measure of the arc it intercepts.
Inscribed Angles Intercepting Arcs Conjecture
Inscribed angles that intercept the same arc are congruent.
Angles Inscribed in a Semicircle Conjecture
Angles inscribed in a semicircle are right angles.
Cyclic Quadrilateral Conjecture
The opposite angles of a quadrilateral inscribed in a circle are supplementary.
Parallel Lines Intercepted Arcs Conjecture
Parallel lines intercept congruent arcs on a circle.
Arc Length Conjecture
The length of an arc equals the degree measure of the arc divided by 360 degrees, times the circumference of the circle.
I did not include the conjecture about the circumference!!! That is just common knowledge.