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14 Cards in this Set
 Front
 Back
chord central angles conjecture

in a circle if the two chords are congruent the central angles 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 bisects the chord.


Chord distance to a center conjecture

Two congruent chords in a circle are equidistant from the center of the circle.


Perpendicular bisector of a chord converse

The perpendicular bisector of a chord passes through the center of the circle.


Tangent Conjecture

a radius is perpendicular to a tangent at the point of tangency


Tangent segments conjecture

tangent segments from a point outside a circle are congruent.


Inscribed angle conjecture

 the measure of a angle inscribed in a circle is half the measure of its arc.


Inscribed angles intercepting arcs conjecture

Inscribed angles that intercept the same arc are congruent


Angles inscribed in a semicircle conjecture

The angles inscribed in a semicircle are right angles.


Cyclic quadrilateral conjecture

The opposite angles of a cyclic quadrilateral are supplementary


Parallel lines intercepted arcs conjecture

parallel lines intercept congruent arcs on a circle.


Circumference conjecture

to find the circumference of a circle, you multiply 2 by pi and then by the radius


Arc Length Conjecture

the length of an arc equals the arch angle divided by 360 times the circumference
