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On graph paper, set up - and -axes for a four quadrant graph. Then draw a triangle with vertices at . Label this triangle T.  

  1. Translate (slide) the triangle left units and down units. Label this triangle A and list the vertices.

  2. Reflect triangle T across the -axis. Label this triangle B and list the vertices.

  3. Are triangles T, A, and B congruent (that is, do they have the same shape and size)? Explain.

    By translating or reflecting the triangle to a different position, has the original triangle changed?

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