Raytown Translation - 2
Triangle Reflection Exploration
Use the slider to explore how changing triangle ABA' impacts its reflection (triangle A'B'A''). Are the two triangles congruent? If you connect B to B' with a segment, how would segment BB' be related to line GH? |
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Triangle Rotation Example
The slider controls of the angle of rotation of triangle ABC around the origin, which is A'B'C'. Move the slider to see how the triangle rotates. |
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1) What are the coordinates of A', B', and C' when r = 90º? 2) What are the coordinates of A',B', and C' when r = 180º? 3) What are the coordinates of A',B', and C' when r = 270º? 4) What are the coordinates of A',B', and C' when r = 360º? 5) What patterns do you recognize to transform A to A' for each of these transformations? |
Triangle Dilation
Use the slider to control "k" which is the scale factor of the dilation of triangle ABC to triangle A'B'C'. |
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1) If k = 1, how does triangle ABC compare to triangle A'B'C'? 2) If k = 2, how does triangle ABC compare to triangle A'B'C'? 3) If k = .5, how does triangle ABC compare to triangle A'B'C'? 4) What is the difference between dilating the triangle k = 2 and k = -2? |