1. Arcs and Chords Theorem 10.2 In a circle or in congruent circles, two minor arcs are are congruent if and only if their corresponding chords are congruent. Inscribed – Drawn within. Circumscribed – Drawn around.

2. Arcs and Chords Theorem 10.3 In a circle, if a diameter or radius is  to a chord, then it bisects the chord and its arc. Theorem 10.4 In a circle or congruent circles, two chords are congruent if and only if they are equidistant from the center.

3. Example 3-2c ADVERTISING A logo for an advertising campaign is a pentagon that has five congruent central angles. Determine whether. Answer: no

4. Example 3-3g Answer: 145 Answer: 10 Circle O has a radius of 25 units. Radius is perpendicular to chord which is 40 units long. a. If b. Find CH.

5. Example 3-4d Answer: Chords and are equidistant from the center of If TX is 39 and XY is 15, find WZ and UV.