discovering geometry boning
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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Chord Central Angles Conjecture | If two chords in a circle are congruent, then they determine two central angles that are congruent.
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Chord Arcs Conjecture | If two chords in a circle are congruent, then their intercepted arcs are congruent.
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Perpendicular to a Chord Conjecture | The perpendicular from the center of a circle to a chord is the bisector of the chord.
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Chord Distance to Center Conjecture | Two congruent chords in a circle are equidistant from the center of the circle.
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Perpendicular Bisector of a Chord Conjecture | The perpendicular bisector of a chord passes through the center of the circle.
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Tangent Conjecture | A tangent to a circle is perpendicular to the radius drawn to the point of tangency.
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Tangent Segments Conjecture | Tangent segments to a circle from a point outside the circle are congruent.
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Inscribed Angle Conjecture | The measure of an angle inscribed in a circle is one-half the measure of the central angle.
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Inscribed Angles Intercepting Arcs Conjecture | Inscribed angles that intercept the same arc 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 | The opposite angles of a cyclic quadrilateral are supplementary.
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Parallel Lines Intercepted Arcs Conjecture | Parallel lines intercept congruent arcs on a circle.
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Circumference Conjecture | If C is the circumference and d is the diameter of a circle, then there is a number such that C=πd. If d=2r where r is the radius, then C=2πr.
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Arc Length Conjecture | The length of an arc equals the circumference times the measure of the central angle divided by 360°.
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Created by:
blulub
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