Explanation:
A) Angle L is 67.5 degrees. Angles F and L are opposite each other, yet the same angle-degree
B) e = 75°, how do i know? The triangle in the middle is isosceles so the angles on the base are equal and together with angle f, add up to 180°
C) ∠K is an alternate exterior angle.
D) ∠H is a vertical angle.
Hope this helps