This geometry word problem can be used after investigating the " Angle Angle Triangle Similarity Postulate," as an application task. Some textbooks may refer to it as the AAA or Angle Angle Angle Triangle Similarity Theorem. Alternatively, it can be used as a guiding task, in which students attempt it and perhaps get perturbed. This can lead to an investigation of the Angle Angle Triangle Similarity Postulate. Students come to understand that when two angles of one triangle are congruent to