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20 January, 02:52

Identify the rotation rule on a coordinate plane that verifies that triangle A (2,-1), B (4,1), C (3,3) and triangle A' (-2, 1), B' (-4,-1), C' (-3,-3) are congruent when rotated 180°.

A) (x, y) → (-y, x)

B) (x, y) → (-x, - y)

C) (x, y) → (y, - x)

D) the triangles are not congruent

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Answers (1)
  1. 20 January, 03:02
    0
    I think the answer is B.
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