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23 October, 05:05

A triangle has the coordinates (-3, 4), (-4, 7), and (-2, 7) at its vertices. The transformed triangle has the coordinates (-4, - 3), (-7, - 4), and (-7, - 2) at its vertices.

Are the triangle and its transformation congruent? Why or why not?

A. No, the transformation is a 90° clockwise rotation.

B. No, the transformation is a 180° clockwise rotation.

C. Yes, the transformation is a 270° clockwise rotation.

D. Yes, the transformation is a 360° clockwise rotation.

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Answers (1)
  1. 23 October, 05:38
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    First draw an x-y plane and plot the coordinates (-3, 4), (-4, 7), and (-2, 7) for the first triangle. Then, plot the coordinates (-4, - 3), (-7, - 4), and (-7, - 2) for the second triangle. Examine the graph and then identify if it is congruent or not and measure it's rotation.

    The answer is C. Yes, the transformation is a 270 degree clockwise rotation.
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