The figure shows triangle abc and line segment pq, which is parallel to bc: triangle abc has a point p on side ab and point q on side ac. the line pq is parallel to the line bc. part a: is triangle abc similar to triangle apq? explain using what you know about triangle similarity. part b: which line segment on triangle apq corresponds to line segment bc? explain your answer. part c: which angle on triangle apq corresponds to angle b? explain your answer.