Ch.6 Conjectures
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Intersecing Secants Conjecture | angle formed by secants that intersect out of circle= 1/2difference of arcs
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| Intersecting Chords Conjecture | angle formed by 2 intersecting chords is 1/2sum
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| Tangent-Secant Conjecture | angle formed by intersecting tangent and secant is 1/2difference
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| Intersecting Tangents Conjecture | angle formed by 2 intersecting tangents to a circle=1/2difference
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| Tangent Chord Conjecture | angle formed by intersecting tangent and chord at pt. of tangency=1/2arc
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| Circumference Conjecture | C=d*pie
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| Arc Length Conjecture | arc length=arc measure/360 * circumference
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| Inscribed Angle Conjecture | msr of inscribed angle is 1/2 arc
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| Inscribed Angle Intercepting Arcs Conjecture | inscribed angles that intercept the same arc/or congruent arcs, are congruent
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| Angles Inscribed in a Semicircle Conjecture | angles inscribed in a semicircle are right angles
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| Cyclic Quadrilateral Conjecture | opp. angles of a cyclic quad. are supplementary
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| Parallel Lines Intercepted Arcs Conjecture | parallel lines intercept congruent arcs on circle
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| Chord Central Angles Conjecture | congruent chords->congruent angles
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| Chord Arcs Conjecture | congruent chords->congruent arcs
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| Perpendicular to a Chord Conjecture | perpendicular from center of circle to a chord is its bisector
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| Chord Distance to Center Conjecture | 2 congruent chords in a circle are equidistant from center of circle
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| Perpendicular Bisector of a Chord Conjecture | perpendicular bisector of a chord passes thru the center
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| Tangent Conjecture | a tangent to a circle is perpendicular to the radius at pt of tangency
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| Tangent Segments Conjecture | tangent segments to a circle from a pt. outside the circle are congruent
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