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Warm-Up. Get out your foldable from yesterday and fill in Postulates 1.1-1.4 You can find them in your book on pages 13-15 You have until 2:05 to finish. Homework Review. Homework Review. 22. Plane VWX, Plane VWS 33. Answers may vary 34. Not Possible 35. Answers may vary 36. Not Possible
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Warm-Up Get out your foldable from yesterday and fill in Postulates 1.1-1.4 You can find them in your book on pages 13-15 You have until 2:05 to finish
Homework Review 22. Plane VWX, Plane VWS 33. Answers may vary 34. Not Possible 35. Answers may vary 36. Not Possible 38. You can represent a plane using a four sided figure. However, planes do not have boundaries, so they extend past the drawn edges without end. 40. always 41. sometimes 42. always 43. sometimes 44. always
Section 1.3 Measuring Segments SWBAT find and compare lengths of segments
Postulates Use your book to fill in Postulates 1.5 and 1.6 Make sure as you do this that you are understanding what it says… if not then ask for help!
Let’s talk about Postulate 1.5 The distance between any two points is positive (remember absolute value?)
Example • Find the length of AB and BC
Question 1 • Determine if the segments GH and HI are congruent • A. Yes • B. No • C. What does congruent mean?
Example • Given: ST = 3x + 3 and TU = 2x + 9. • a. What is the value of ST? • b. What is the value of TU?
Question 2 • Given: ST = x + 3 and TU = 4x 6. What is the value of ST? • A. 3 • B. 6 • C. 12 • D. x = 3 • E. Please go over this
Segment Addition Postulate Part 1 + Part 2 = Whole
Example If PM = 19 and MN = 23, find PN
Question 3 • If PN = 29 and MN = 13, find PM • A. 16 • B. 42 • C. 2 • D. 13
Definition The midpoint of a segment is a point that divides the segment into two congruent segments
Definition A ray, line, point, or other segment that intersects a segment at its midpoint is called a segment bisector.
Question 5 If AD = 20 and AC = 3x + 4, find the value of x. A. 12 B. 20 C. 40 D. x