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Give a reason that justifies each statement for questions 4-9.

Give a reason that justifies each statement for questions 4-9.-example-1
User Teynon
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4.

The angles ∠6 and ∠8 are congruent because they are alternate interior angles.

5.

The angles ∠4 and ∠5 added are equal to 180° because they are supplementary angles.

6.

If ∠1 is equal ∠7, then they are alternate exterior angles, therefore the lines p and q need to be parallel.

7.

The angles ∠1 and ∠2 are congruent because they are vertically opposite angles.

8.

If ∠2 and ∠6 are supplementary, they are consecutive interior angles, therefore the lines p and q need to be parallel.

9.

The angles ∠6 and ∠9 are congruent because they are corresponding angles.

User Kopischke
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