Angle-Angle Similarity Postulate
Read this article and watch the videos, which define AA similarity. Examples 1–5 show how to apply the AA similarity postulate to solve for unknowns in a triangle.
Then, complete review questions 6, 7, 8 and 10 and check your answers.
Click https://www.ck12.org/geometry/Similarity-by-AA-SSS-SAS/lesson/AA-Similarity-BSC-GEOM/ link to open resource.