PO PR ST OR Given: Prove: APST is isosceles In the proof, what is the reason for line R. A. isosceles triangle theorem Statement Reason 1. PQ PR given В. transitive property of equality 2. m21 = mL2 3. ST OR given C. corresponding Ls are congruent 4. m21 =mL3 D. alternate interior Zs are congruent S. mL2 = mL4 6. m22 = m23 7. 8. PS PT 9. APST is isosceles

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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Given: PO - PR
ST OR
Prove:
APST is isosceles
3
In the proof, what is the reason for line 6
R.
A. isosceles triangle theorem
Statement
Reason
1. PQ PR
given
transitive property of equality
2. m21 = mL2
3. ST || OR
C. corresponding Zs are congruent
given
4. m21 = mL3
D. alternate interior Zs are congruent
S. mL2 = mL4
6. m22 = mL3
7.
8. PS = PT
9. APST is isosceles
B.
Transcribed Image Text:Given: PO - PR ST OR Prove: APST is isosceles 3 In the proof, what is the reason for line 6 R. A. isosceles triangle theorem Statement Reason 1. PQ PR given transitive property of equality 2. m21 = mL2 3. ST || OR C. corresponding Zs are congruent given 4. m21 = mL3 D. alternate interior Zs are congruent S. mL2 = mL4 6. m22 = mL3 7. 8. PS = PT 9. APST is isosceles B.
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