Isosceles triangles?

The right isosceles triangle PQR has vertices P(3,3), Q(3,1), R(x,y) and is rotated 90 degrees counterclockwise about the origin. Find the missing vertex of the triangle. Then graph the triangle and its image. How do you do this?
icis77
Asked Sep 09, 2013
You can do a search here and watch tutorials that explain everything:
http://www.khanacademy.org/math/geometry
skyDancer
Answered Sep 09, 2013

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