Shu believes that a theorem is missing from the lesson. His conjecture is that if two coplanar lines are cut by a transversal so that a pair of same-side exterior angles are supplementary, then the two lines are parallel. Complete the two-column proof with the statements and reasons provided. Given: 21 and 23 are supplementary. Prove: m || n Proof: Statements Reasons 1. 21 and Z3 are supplementary 1. 2 2. Linear Pair Theorem 3. Z1 22 4 Converse of Corresponding Angles Postulate

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Shu believes that a theorem is missing from the lesson. His conjecture is that if
two coplanar lines are cut by a transversal so that a pair of same-side exterior
angles are supplementary, then the two lines are parallel. Complete the
two-column proof with the statements and reasons provided.
Given: 21 and 23 are supplementary.
m
Prove: m || n
Proof:
Statements
Reasons
1.21 and 23 are supplementary
2.
2. Linear Pair Theorem
3. /1 e 22
4. Converse of Corresponding Angles Postulate
Transcribed Image Text:Shu believes that a theorem is missing from the lesson. His conjecture is that if two coplanar lines are cut by a transversal so that a pair of same-side exterior angles are supplementary, then the two lines are parallel. Complete the two-column proof with the statements and reasons provided. Given: 21 and 23 are supplementary. m Prove: m || n Proof: Statements Reasons 1.21 and 23 are supplementary 2. 2. Linear Pair Theorem 3. /1 e 22 4. Converse of Corresponding Angles Postulate
# Z2 and 2 3 are supplementary
: Congruent Supplements Theorem
: Given
Transcribed Image Text:# Z2 and 2 3 are supplementary : Congruent Supplements Theorem : Given
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