(John of the clue crew reporting)  Because the geometric shape here has all right angles, it's called a rectangle; when they're not right angles, it becomes this type of quadrilateral
Angle QPS measures 30, so triangle PQS is a 30-60-90 triangle, and you can
... [DOC] [TLE] Connections : the Geometric Bridge between Art and Science [PAR] 3.4 The Golden Rectangle and the Golden Section.