In the given triangle ABC, angle A is 90° and segment AD is perpendicular to segment BC. PLEASE HELP I CANT FIGURE THIS OUT AT ALL 50 POINTS AND MARKING U SMARTEST THING! The figure shows triangle ABC with right angle at A and segment AD. Point D is on side BC. Part A: Identify a pair of similar triangles. Part B: Explain how you know the triangles from Part A are similar. Part C: If DB = 9 and DC = 4, find the length of segment DA. Show your work.