Drag each tile to the correct box. David proved the Law of Cosines with reference to ∆ABC using a different method. Arrange the steps of his proof in the correct sequence. (Transitive Property) (on simplification) Similarly, prove that and . In , (Pythagorean Theorem) In , (Pythagorean Theorem) (on simplification) (on simplification) Draw a perpendicular, , from B to side AC. Let and . Therefore, . Therefore, .