1. 9.5(b) Notes: The ∆ Angle Bisector Theorem
Date:
9.5(b) Notes: The ∆ Angle Bisector Theorem
Lesson Objective: Use the ∆ Angle Bisector Theorem to find segments.
CCSS: G.SRT.4, 5
You will need: colored pens, a calculator
This is Jeo-
pardy!!!:
Find the
value of x.

2. Lesson 1: Triangle Angle Bisector Theorem
Draw acute ∆JKL with a ruler in PENCIL. Bisect / J using black ink. Label the angle bisector JM. K
J L

3. Lesson 1: Triangle Angle Bisector Theorem
Draw acute ∆JKL with a ruler in PENCIL. Bisect / J using black ink. Label the angle bisector JM. K M
J L

4. Lesson 1: Triangle Angle Bisector Theorem
Color over JK and KM in red and JL and LM in blue. K M
J L

5. Lesson 1: Triangle Angle Bisector TheoremK M
J L

6. Lesson 2: Use the Δ Angle Bisector Theorem
Find the value of x.
A. B.

7. H/W 9.5 p. 586: 4, 5, 11-14

8. H/W 9.5 p. 586: 4, 5, 11-14
14.