1. Solutions to HW 1. GKJ*9. B *2. GC10. G 3. G11. x = -29 4. J12. (4,9) *5. EG *6. BA and BC *7. C 8. FK

3. Measuring Segments and Angles 1.3 and 1.4

4. Objective In today’s lesson, you will learn about ruler postulates and apply some algebraic math to the measurements as well.

5. Take ruler out and tape string to the ruler please. We can calculate distance using the ruler postulate. How do we do this??? How is a line segment written again?

6. What is the length of ST? What is the length of TV? What is the length of SV given the lengths of ST and TV? Did we just discover another Postulate???

7. How would you write this new postulate?

8. Postulate 1-6

9. Suppose EF = FG. Solve for x

10. VocabDefinitionPicture Congruent Segments If two or more segments have the same length, then the segments are Congruent. Midpoint The midpoint of a segment divides the segment into two equal segments. Segment Bisector A point, line, or other segment that intercepts a segment at its midpoint is said to bisect the segment.

11. Go Back to Activity Worksheet

12. Angle Vocabulary Does the length of the sides of an angle determine the degree of the angle?

13. Protractor

14. Types of Angles What type of angle is <HKN <LKJ <MKL

15. Congruent Angles On the first activity we worked on with ANGLES, we were looking for congruent angles. Angles with the same degree are congruent angles.

16. Algebra Problems If <ROT = 155, what is the degree of <ROS & <SOT? Use Statement Reason!

17. Solutions to HW 1. 89, 45, 44 2. -14 3. 19 4. 32 5. 13 6 23, 25