Analyze and sort a set of illustrations of triangles in a given context according to whether they are right triangles or not, and justify the sort.

Apply personal strategies to determine, with justification, if solutions to problems that involve two or three right triangles are reasonable.

Sketch representations of 2-D shapes or 3-D objects from given contexts or situations.

Apply personal strategies including the primary trigonometric ratios to solve situational questions that involve:

• angles of elevation or angles of depression, and explain the reasoning
• more than two right triangles and explain the reasoning.