There are two types of special right triangles. Named for the measures of their angles, they are 45°-45°-90° and 30°-60°-90° right triangles. In each type of special right triangle, there exist relationships between the sides of the triangle that help you more easily determine side lengths. In this topic, you have explored how to use one piece of information in a special right triangle to determine the lengths of the remaining two sides. Right triangles are the cornerstone of many industries, making this information both relative and useful in your everyday life.