Four-sided Figures: Finding Unknown Angles - Part 2

1. Find the unknown marked angles in the trapezium below.

geometry finding unknown angles in a 4-sided figure
∠p + ∠s = 180°
∠p = 180°  −  62° = 118°
The sum of a pair of angles between two parallel lines is 180°.
From the data given, it is not possible to find ∠r.