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26 January, 16:13

A triangle's coordinates are (-2,1), (-6,1), and (-4, 5). After the triangle is rotated clockwise 270°about the origin, what are the new coordinates?

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  1. 26 January, 19:10
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    The new coordinates are (-1, - 2), (-1,-6) and (-5,-4). Rotating a triangle clockwise 270 degrees about the origin is the same thing as rotating a triangle 90 degress counterclockwise. Here is my work:

    1: Original Coordinates: (-2,1), (-6,1), (-4,5)

    2: y value signs turn negative: (-2,-1), (-6,-1), (-4,-5)

    3: Switch x and y values: (-1,-2), (-1,-6), (-5,-4)
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