Question

lines and angles formula​

Answer 1

Answer:

This is the answer for your question

Answer 2

Answer:

If ∠H = 60°, ∠E = 120° since those two are on a straight line, they are supplementary. Now, ∠A = ∠E = 120°. ∠A and ∠E are corresponding angles. When corresponding angles are equal, the lines are parallel.