Parallel lines and transversals

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Intros
Lessons
  1. Relationships between lines and angles
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Examples
Lessons
  1. Find the missing values and then explain your reasoning.
    missing values in angles
    1. 6\angle 6 \cong ?
    2. 2\angle 2 \cong ?
    3. if m 8\angle 8 = 60°, m 1\angle 1 = ?
    4. 3\angle 3 and ?\angle ? Are supplementary
  2. Find the value of x.

    1. find missing angles 1

    2. find missing angles 2

    3. find missing angles 3
  3. Write a two-column proof.
    Given: AB\overline {AB} \parallel CD\overline {CD}
    Prove: 1\angle 1 \cong 2\angle 2
    angles two-column proof