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The plate is rotated 90° about the origin in the counterclockwise direction. In the rotated trapezoid, what are the coordinates of the endpoints of the side congruent to side GH…

The plate is rotated 90° about the origin in the counterclockwise direction. In the rotated trapezoid, what are the coordinates of the endpoints of the side congruent to side GH…
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5 votes
The plate is rotated 90° about the origin in the counterclockwise direction. In the rotated trapezoid, what are the coordinates of the endpoints of the side congruent to side GH?

asked
User Retrodrone
by
8.1k points

1 Answer

4 votes
Use (x,y) -> (-y,x) for rotation (CCW) about the origin.
No graph, so cannot give more details.
answered
User Ramesh Navi
by
8.2k points
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