Question 6
Given the trapezium TUQR as the figure below. Find the measure of angle URQ.

Editorial clarification: follow the labelled figure, with TU parallel to QR and P,Q,R collinear. The English and Vietnamese vertex-order strings differ.

Editorial clarification: follow the labelled figure, with TU parallel to QR and P,Q,R collinear. The English and Vietnamese vertex-order strings differ.