3.5 Using props of ll lines

3.5 Using props of ll lines - In a plane, if 2 lines are to...

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3.5 Using Properties of 3.5 Using Properties of   Lines Lines p. 157 p. 157
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Theorem 3.11 If 2 lines are  to the same line, then they are  to each other. If l  m and n  m, then l  n. l m n
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Proof of thm. 3.11 Statements 1. l  m, n  m 1. 1 2245 2, 2 2245 3 2. 1 2245 3 1. l  n Reasons 1. Given 2. Corresponding s post 3. Trans. Prop. of 2245 4. Corresponding s Converse l m n 1 2 3 * It is necessary to add an auxiliary line t to the diagram for proof purposes. t
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Unformatted text preview: In a plane, if 2 lines are to the same line, then they are to each other. If l t and m t, then l m Theorem 3.12 l m t 1 2 * 1 & 2 added for proof purposes. Proof of thm. 3.12 Statements 1. l t , m t 1. 1 is a rt. , 2 is a rt. 3. 1 2245 2 4. l m Reasons 1. Given 2. Def. of lines 1. Rt. 2245 thm 2. Corresp. s converse Assignment Assignment...
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This note was uploaded on 02/12/2011 for the course MTG 3212 taught by Professor Jackson during the Spring '11 term at University of Florida.

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3.5 Using props of ll lines - In a plane, if 2 lines are to...

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