Final answer:
To identify the right angles on the triangular prisms, look for labeled angles that measure exactly 90 degrees or angles formed by the intersection of lines that form a right angle.
Step-by-step explanation:
To identify the right angles on the triangular prisms, we need to understand that a right angle measures exactly 90 degrees. In a triangular prism, the angles formed at the base and the top face are related to the angles of the triangular bases. To determine if an angle is a right angle, we need to find angles that measure 90 degrees. These angles would form a 90-degree angle with one of the sides of the triangular prism.
For example, if one of the labeled angles is labeled as 90 degrees, it indicates a right angle. Another way to identify right angles is by examining the intersections of the lines on the triangular prism. If two lines intersect at a right angle, the labeled angles at that intersection are also right angles.