Question

Can someone help me on this?? Im usually good at geometry, but I don't understand this.

Answer 1

Because of the given information angles 3 and 5 are considered alternate interior angles. Think alternate because they are on opposite sides and interior because they are on the inside.

These types of angles are congruent, therefore if m<5 = 58, then m<3 would also = 58. 

Answer 2

If d is a transversal of parallel v and w, the angles 3 and 5 are alternate interior.  Therefore, they are congruent.  Angle 3 and 5 both measure 58.