1. Week 1
Warm Up
Add theorem 2.1 here next year.

2. I will use the properties of chords of circles.
Section 10.2 Day 2
I will use the properties of chords of circles.
Congruent Arcs
Two arcs of the same circle or congruent circles are congruent if they have the same measure.
yes
yes no

3. Arcs – Corresponding Chords
Theorem
Arcs – Corresponding Chords
In the same circle, or in congruent circles, two minor arcs are congruent if and only if their corresponding chords are congruent.

4. Arcs – Diameter Bisector
Theorem
Arcs – Diameter Bisector
If a diameter of a circle is perpendicular to a chord, then the diameter bisects the chord and its arc.

5. Chord – Perpendicular Bisector
Theorem
Chord – Perpendicular Bisector
If one chord is a perpendicular bisector of another chord, then the first chord is a diameter.

6. Ex 1

7. Chord – Center Equidistance
Theorem
Chord – Center Equidistance
In the same circle, or congruent circles, two chords are congruent if and only if they are equidistant from the center.

8. Ex 2
Find CF 8
AB = 8
DE = 8 8
CD = 5 1 2 3
CG = CF
( T10.7)
3 = CF

9. Do 1:
Assignment:
Textbook Page 608 , – 51 all.

10. Activity
Don’t Write