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Dmitry_Shevchenko [17]
3 years ago
6

Statement Reason 1. Let points A, B, and C form a triangle. given 2. Let be a line passing through B, parallel to , with angles

as labeled. defining a parallel line and labeling angles 3. 4. m∠1 = m∠4, and m∠3 = m∠5. Congruent angles have equal measures. 5. m∠4 + m∠2 + m∠5 = 180° angle addition and definition of a straight angle 6. m∠1 + m∠2 + m∠3 = 180° substitution What is the missing step in this proof?
Advanced Placement (AP)
2 answers:
il63 [147K]3 years ago
7 0

Answer:

alternant interior theorum. i cant remember the exact equation but it started with a 4

Explanation:

-BARSIC- [3]3 years ago
4 0

they didn't say what kind of triangle it is

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