45-45-90 Right Triangles
Read this article and watch the videos to learn about the special properties of isosceles triangles. Pay attention to the examples of finding the length of missing side and solving for unknowns. The article also shows how we can divide squares into two isosceles triangles and then use our knowledge of these triangles to solve for an unknown.
Then, complete review questions 9–12 and check your answers.
Click https://www.ck12.org/geometry/45-45-90-right-triangles/lesson/45-45-90-Right-Triangles-GEOM/ link to open resource.