Two lines on the graph are cut by a transversal. which angles must be congruent for the lines to be parallel? a) ∠1 and ∠4 b) ∠1 and ∠8 c) ∠2 and ∠4

I believe ur answer is < 1 = < 8...because alternate exterior angles are congruentthis has to do with transversals and parallel lines

reason it is not < 1 = < 4 is because vertical angles are always congruentthis has nothing to do with a transversal and parallel lines. And < 2 and < 4 are not congruent

The answer is 41.7 because 1.39 times 30 is 41.7