Does anyone know the answer to this i need help really bad!!!

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots.

Mathematician needed for homework plz 20 points