Answer:
I
Step-by-step explanation:
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Given: a | | b, m 2 = m 3
Prove: m 1 = m 3
1. a || b, m∠2 = m∠3
Given
2. m∠1 = m∠2
If lines are ||, corresponding angles are equal.
3. m∠1 = m∠3
Substitution
Answer:
8 5/7
Step-by-step explanation:
278/7 = 39 5/7
39 5/7 - 31 = 8 5/7
Step-by-step explanation:
Please refer to the attachment