triangle proof recorder steps

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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triangle proof recorder steps
Reorder the steps of the proof to make sure that steps that are logically dependent on
prior steps are in the proper order.
Given: AD || BC and AB || CD.
Prove: ZB ZD.
Step
Statement
Reason
AD BC
Given
1
AB || CD
ABCA ADAC
ASA
Parallel lines cut by a transversal form congruent alternate interior
ZBCA LC AD
3
angles
Corresponding Parts of Congruent Triangles are Congruent
(СРСТО)
ZB ZD
4.
AC AC
Reflexive Property
Parallel lines cut by a transversal form congruent alternate interior
angles
ZBAC LACD
Transcribed Image Text:Reorder the steps of the proof to make sure that steps that are logically dependent on prior steps are in the proper order. Given: AD || BC and AB || CD. Prove: ZB ZD. Step Statement Reason AD BC Given 1 AB || CD ABCA ADAC ASA Parallel lines cut by a transversal form congruent alternate interior ZBCA LC AD 3 angles Corresponding Parts of Congruent Triangles are Congruent (СРСТО) ZB ZD 4. AC AC Reflexive Property Parallel lines cut by a transversal form congruent alternate interior angles ZBAC LACD
Step
Statement
Reason
AD BC
Given
1
AB CD
2.
ABCA ADAC
ASA
Parallel lines cut by a transversal form congruent alternate interior
ZBC A LC AD
angles
Corresponding Parts of Congruent Triangles are Congruent
(СРСТС)
ZB ZD
AC AC
Reflexive Property
Parallel lines cut by a transversal form congruent alternate interior
ZBAC LACD
angles
B
C
D
Transcribed Image Text:Step Statement Reason AD BC Given 1 AB CD 2. ABCA ADAC ASA Parallel lines cut by a transversal form congruent alternate interior ZBC A LC AD angles Corresponding Parts of Congruent Triangles are Congruent (СРСТС) ZB ZD AC AC Reflexive Property Parallel lines cut by a transversal form congruent alternate interior ZBAC LACD angles B C D
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