Using Math to Solve Billiards Angle Problems

This lesson teaches how to write equations for multi-step problems using angle relationships. It begins with a review of supplementary angles and introduces the concept of angles of approach and departure using a pool table example. The lesson includes solving equations to find unknown angles in various scenarios, such as a pool ball hitting a table and a test problem involving triangle angles. The lesson concludes with a summary of the key concepts covered.

What is the relationship between the angle of approach and the angle of departure when a pool ball hits the side of the table?

What does it mean for two angles to be supplementary?

How do you set up an equation to find the angle of departure if the angle of approach is given as 120 degrees?

Describe the process of writing an equation for a multi-step problem involving angles.

Explain how to solve for the missing angle in a triangle when given two angles.