Question

Each triangle in the diagram is a reflection of another triangle across one of the given lines. How can you describe Triangle 3 by using a reflection rule?

A. Rm
(Triangle 2)

B. Rm
(Triangle 1)

C. Rl
(Triangle 1)

D. Rl
(Triangle 2)

Answer 1

D

Explanation:

its reflected off the L-axis

Answer 2

Looking at the given figure above, the correct answer would be option D. Rl triangle 2. To describe triangle 3 using the reflection rule, we can say that Triangle 3 is a mirror reflection of Triangle 2 with respect to line l. The reflection rule is is a mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points. In other words, it is a flip.