1. Do NowDo Now
Look through your notes.Look through your notes.
How can we tell if a chord is bisected?How can we tell if a chord is bisected?

2. ObjectiveObjective
 Apply the chord bisecting theorem.Apply the chord bisecting theorem.

3. Notebook QuizNotebook Quiz
 Objectives for the following daysObjectives for the following days

4 – 264 – 26

4 – 274 – 27

4 – 284 – 28
 Do Now forDo Now for

4 – 74 – 7
 Do Now answer forDo Now answer for

4 – 64 – 6

4. HomeworkHomework
pg 404pg 404 #10#10
a.a. 9090°,°, 9090°,°, 9090°,°, 9090°°
b.b. 70 °70 °
c.c. 140 °140 °
d.d. 70 °70 °
e.e. 40 °40 °

5.  How long is AB ?How long is AB ?
O
A
B
C
D
5
13
•Step 1 – Identify the
length of the radius.
•Step 2 – Draw in a
radius to complete
the triangle.
•Step 3 – Use the
Pythagorean theorem
to solve for the
missing piece.
Example 1Example 1

6. Example 2Example 2
 How long is RO?How long is RO?
O
A
B
C
D
17
R
15
•Step 1 – Identify the
length of the radius.
•Step 2 – Draw in a
radius to complete
the triangle.
•Step 3 – Use the
Pythagorean theorem
to solve for the
missing piece.