Part III: Complete a formal proof to validate your findings from Parts I and II. (9 points)

Step 1: Every proof needs Given and Prove statements. Use the endpoints on the diagram to write a Given statement indicating the down tube is longer than the top tube. Prove the relationship between the opposite angles of the given sides. (2 points; 1 point for the Given statement, 1 point for the Prove statement)

Given:

Prove: