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Answers to Homework

Answers to Homework. 2) True 4) True 6) False 8) False 10) True 14) No 16) *Plane VST and RSTW 18) *VS *Plane VWT 22) *AE ER EH 24) a) No b) Yes 26) * a) Plane ABFRE Plane DCGSH b) Plane EHDA Plane FGCB 28) a) Yes b) No *ORDER MAY VARY.

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Answers to Homework

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  1. Answers to Homework 2) True 4) True 6) False 8) False 10) True 14) No 16) *Plane VST and RSTW 18) *VS *Plane VWT 22) *AE ER EH 24) a) No b) Yes 26) * a) Plane ABFRE Plane DCGSH b) Plane EHDA Plane FGCB 28) a) Yes b) No *ORDER MAY VARY

  2. 1-3 Segments, Rays, and Distance

  3. Vocabulary • Segment: A line that has 2 end points • Ray: A line that has 1 end point • Opposite Rays: Two rays going in opposite directions with the same end point Makes a line! E G R S

  4. Distance • Space between 2 numbers on a number line • The absolute value of the difference of 2 coordinates Examples: Find the distance between 1 and 4. Find the distance between -2 and 3.

  5. Segments • Congruent: Same size and shape (equal) • Congruent Segments: segments with equal length B C 3 in D 3 in Lengths are equal No line = Length AB = 3 in A

  6. More Segments • Midpoint of a Segment: a Point that divides a segment into two congruent segments • Bisector of a Segment: a Line, Segment, Ray or Plane that intersects a segment at its midpoint F is the midpoint of EG E F G M bisects EG M

  7. Segment Addition Postulate • If B is between A and C, then AB + BC = AC Example: Given RS = 3x, ST = 12 – x, and RT = 24, find x. R S T

  8. TOO • Given E is the midpoint of DF, DE = 4x – 3 and EF = 3x + 2, find x. D E F

  9. Homework • Page 15 #1-39 odd • Show work whenever possible • Flash Cards • Segment • Ray – Midpoint of a Segment • Opposite Rays – Bisector of a Segment • Distance • Congruent – Segment Addition Postulate

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