Match the reasons with the statements in the proof. Given:
c | | d, m4 = m5

Prove:
m7 = m8

1. c||d, m∠4=m∠5
Substitution
2. m∠4 = m∠7
If lines ||, alternate interior angles are equal.
3. m∠5 = m∠8
Given
4. m∠7 = m∠8
Vertical angles are equal.

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step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

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step-by-step explanation:

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