1. Bellwork A C B D

2. 1.4b Angle Bisectors Given a ray bisects an angle, students will be able to conclude two angles are congruent and find missing angle measures.

3. Angle Bisector If a ray divides an angle into two congruent ( ) angles then it is an angle bisector. Draw this. Draw this

4. Example 1 Which ray is the angle bisector? Given the angle bisector, what can I conclude?

5. Example 2 and are opposite rays. bisects. If the, what is the measure of ?

6. Example 3 and are opposite rays. bisects. If the, and, what is the measure of ?

7. Example 4 Draw <RQS. Draw Angle Bisector. If m<SQT = 7x – 2 and m<TQR = 6x + 5, find x and m<RQT.

8. Example 5 bisects. If and, what is the measure of ?

9. Ticket to Leave bisects. If and, find the measure of ?.

10. Homework Pg. 36 # 7 – 16, 31, 32, 54 – 57 Quiz Friday over 1.4 & 1.5