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Above image shows that parallel lines CD and EF are transversed by line AB, where: ∠l = ∠l5, ∠2 = ∠l8, ∠3 = ∠l6, and ∠4 = ∠l7 Note: Corresponding angles can be supplementary if the transversal intersects two parallel lines perpendicularly at right angles then each of the corresponding angles will be 90 degrees and
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