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18 July, 13:08

The following triangle ABC is rotated clockwise about the origin the new coordinates are A' (1,-2) B' (4,6) and C' (-2,3). Which of the following is measured of the angle of rotation?

Original Angles A (2,1) B (-6,4) C (-3,-2)

A. 45 degrees

B. 90 degrees

C. 180 degrees

D. 270 degrees

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Answers (2)
  1. 18 July, 13:31
    0
    The answer is B!
  2. 18 July, 13:44
    0
    B. 90 because 90 degrees is above the original angel
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