Notes 1.3 Segments and their Measures.pdf - Notes 1.3...

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Notes: 1.3 Segments and their Measures 1. Postulate Rules that are accepted without proof. The sun is yellow A circle is round 2. Coordinate The number on a number line that represents a point. 3. Distance (on a number line) The difference between 2 coordinates on a number line. It is always a positive number Rule : largest number smallest number Examples: 1. Find GF 2. Find RD 3. Find BG 4. Length Length tells how long a segment is. ? is asking you to find the length of the segment. 5. Between IF B is between X and Y, then the following is true : 6. Congruent If 2 segments have the same length, then they are congruent. G M B D F R 7 5 1 4 7 12 16 2 0 1 2 1 A F The coordinate of point A is ______. The coordinate of point F is ______.
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Unformatted text preview: • – 3 G -1 2 X B Y • • • All of the points are on the same line. symbol for congruent If: and , Then: ̅̅̅̅ ̅̅̅̅ Segment Addition Postulate If B is between A and C, then AB + BC = AC. Examples: 4. If AB = 4 and BC = 23, then AC = _____________ 5. If KL = 14 and EK = 19, then EL = _____________ Examples: Draw and label each diagram. Find the missing value. 6. N is between M and O. 7. D is between B and G. MN = 14 and MO = 36 DG= 12 and DB = 16 Find the length of NO. Find the length of BG. 8. M is between P and T. T is between M and R. PM = TR = 7 and PR = 24. Find the length of TM and MR. • • • A B C • • • E L K 27 5 • • • M N O 14 36 • • • B D G 16 12 • • • P M T • R 7 7 24...
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