It is the alternate angle to the angle of elevation
GEF is the alternate interior angle of angle hge.
4
Alternate Angle
Alternate int angles are two interior angles which lie on different parallel lines and on opposite sides of a transversal
Alternate angles are equal and so angle b is also 105 degrees
360
Alternate angles have the same measure, so there is nothing to solve!
Yes and they are between two parallel lines.
angle 3 and 5
Both alternate interior and alternate exterior angle pairs lie on opposite sides of the transversal.
Theorem 9.1:[Alternate Interior Angle Theorem] If two lines cut by a transversal have a pair of congruent alternate interior angles, then the two lines are non-intersecting.