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If angles 1 and 2 are supplementary which lines are parallel?
In the diagram below, angle 9 ≅ angle 10. Which lines must be parallel? Justify your answer.

If angles 1 and 2 are supplementary which lines are parallel In the diagram below angle 9 angle 10 Which lines must be parallel Justify your answer class=

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Answer:

  2.  j, k

  3.  s, r

Step-by-step explanation:

In each figure, the shared side of the angles of interest is the transversal. The lines it crosses are the parallel lines.

2.  ∠1 and ∠2 are same-side interior angles with respect to transversal h and parallel lines j and k.

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3. ∠9 and ∠10 are alternate exterior angles with respect to transversal j and parallel lines s and r.

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