A) <SQT = 36 degrees (< SQT and < PQR are<em> vertically opposite angles</em>, and vertically opposite angles are equal)
B) <QRW = 36 degrees ( <QRW and < SQT are <em>corresponding angles</em> since they lie on the same side of the transversal across the parallel lines. Corresponding angles are equal)
C)<PRV = 72 degrees( <PRV is the <em>exterior base angle </em>to < PQR and exterior base angles, are always twice their interior correxpondents)