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26-09-2017
Mathematics

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A triangle ABC with vertices A(6,8) B(6,12) C(10,12) is rotated to 180. What are the coordinates of B

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mathmate mathmate

26-09-2017

Assuming rotation is about origin, then
R180: (x,y)->(-x,-y)

So
A(6,8)->A'(-6,-8)
B(6,12)->B'(-6,-12)
C(10,12)->C'(-10,-12)

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