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isaiahh223gLv4
3 May 2022
Given: In Triangle XYZ, m Y = 50, and X Z
Prove: m Z=65
Statement: Reason:
1. XYZ is a triangle 1. Given
2. m X + m Y + m Z = 180 2. Postulate
3. m Y = 50 3. Given
4. X Z 4. Given
5. m X = m Z 5. Congruency
6. m Z + 50+ m Z=180 6. [?]
7. m Z + m Z=130 7.
8. 2 (mZ) = 130 8. Algebra
9. m Z = 65 9. Division Property of Equality
Select the reason that best supports Statement 6 in the given proof.
A. Subtraction Property of Equality
B. Multiplication Property of Equality
C. Addition Property of Equality
D. Substitution
Given: In Triangle XYZ, m Y = 50, and X Z
Prove: m Z=65
Statement: Reason:
1. XYZ is a triangle 1. Given
2. m X + m Y + m Z = 180 2. Postulate
3. m Y = 50 3. Given
4. X Z 4. Given
5. m X = m Z 5. Congruency
6. m Z + 50+ m Z=180 6. [?]
7. m Z + m Z=130 7.
8. 2 (mZ) = 130 8. Algebra
9. m Z = 65 9. Division Property of Equality
Select the reason that best supports Statement 6 in the given proof.
A. Subtraction Property of Equality
B. Multiplication Property of Equality
C. Addition Property of Equality
D. Substitution
christopherc63Lv10
10 Nov 2022