subject
History, 25.04.2020 00:44 kristinashau

Statements
Reasons
1. ABC is a triangle
1. given
2. y || Z
2. given
3.21 = 25; 2326
13.?
4. m21 = m25; m23 = m26 4. def. =
5.m_1 + m_2 + m23 = m_LAM 5.2 addition postulate
6. mz1 + m2 2 + m23 = 180°6. def. straight angle
7. m25+ m22 + m26 = 180° 7. substitution
Which could be the missing reason in Step 3?
alternate interior angles are congruent
alternate exterior angles are congruent
vertical angles are congruent
corresponding angles are congruent


Statements Reasons 1. ABC is a triangle 1. given 2. y || Z 2. given 3.21 = 25; 2326 13.? 4. m21 = m2

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