30-60-90 Right Triangles
Read this article and watch the videos. Pay attention to the 30-60-90 theorem, which gives the ratio needed to solve for an unknown side of this type of triangle.
Then, complete review questions 5–8 and check your answers.
Click https://www.ck12.org/geometry/30-60-90-Right-Triangles/lesson/30-60-90-Right-Triangles-BSC-GEOM/ link to open resource.