1. Pairs of Lines and Angles
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Two angles are consecutive interior angles when they lie between two lines and on the same side of the transversal.
∠ 3 and ∠ 5
∠ 4 and ∠ 6
Now, with this in mind, we can name the consecutive interior angles in the given diagram. &∠ 3 and ∠ 5 &∠ 4 and ∠ 6