Right triangles are triangles that contain one 90-degree angle. In this module, you have explored the relationship between the sides of a right triangle using the Pythagorean Theorem. You have also studied special cases of right triangles, such as the 45°-45°-90° and 30°-60°-90° right triangles. Furthermore, you have delved into the world of trigonometry, in particular sine, cosine, and tangent functions. Right triangles are everywhere in the world around you, and these skills will help you discover their benefits in your personal and professional life.