Rotations on the Coordinate Plane

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Presentation transcript:

Rotations on the Coordinate Plane

Horizontal- left and right

Vertical- up and down

A ROTATION of a geometric figure is the turn of the figure around a fixed point.

Clockwise used sometimes

Counter-clockwise used most of the time

90 a quarter of a turn

180 A straight angle

5 4 3 2 1 -5 -4 -3 -2 -1 A C A B C B Rotate the figure clockwise 90 around the origin. (The origin is the center.)

Rotate the figure 90 counter-clockwise around the origin. 5 4 3 2 1 -5 -4 -3 -2 -1 B C A D A B D C

Rotate the figure 180 counter- clockwise around the origin. 5 4 3 2 1 -5 -4 -3 -2 -1 B C A A Rotate the figure 180 counter- clockwise around the origin. B C

Rotate the figure 180  clockwise around the origin. 5 4 3 2 1 -5 -4 -3 -2 -1 A B C D C D Rotate the figure 180  clockwise around the origin. B A