Circles Lesson 3 April 29 09
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This document discusses two properties of angles inscribed in circles: 1) If two or more angles are subtended by the same arc, then the angles are congruent. 2) If two chords in a circle are parallel, then they are subtended by congruent arcs, and therefore the inscribed angles are congruent. It then lists an exercise with questions 1 through 5.
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All inscribed angles that are subtended by the same arc are congruent. If two chords in a circle are parallel, then they are subtended by congruent arcs and therefore the inscribed angles are congruent. Parallel chords in a circle create congruent inscribed angles.
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