Rotations on the Coordinate Plane

1
Rotations on the Coordinate Plane
2
Horizontal- left and right
3
Vertical- up and down
4
A ROTATION of a geometric figure is the turn of
the figure around a fixed point.
5
Clockwiseused sometimes

6
Counter-clockwiseused most of the time

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90?a quarter of a turn

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180?A straight angle

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5
4
3
2
1
-5 -4 -3 -2 -1 -1 1 2 3 4 5
-2
-3
-4
-5
A
C
A
B
C
B
Rotate the figure clockwise 90? around the
origin. (The origin is the center.)
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Rotate the figure 90? counter-clockwise around
the origin.
5
4
3
2
1
-5 -4 -3 -2 -1 -1 1 2 3 4 5
-2
-3
-4
-5
C
B
A
D
A
B
D
C
11
5
4
3
2
1
-5 -4 -3 -2 -1 -1 1 2 3 4 5
-2
-3
-4
-5
B
C
A
A
Rotate the figure 180? counter- clockwise around
the origin.
B
C
12
5
4
3
2
1
-5 -4 -3 -2 -1 -1 1 2 3 4 5
-2
-3
-4
-5
A
B
C
D
C
D
Rotate the figure 180 ? clockwise around the
origin.
B
A