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8g3 Worksheets

Geometry Understand congruence and similarity using physical models, transparencies, or geometry software. 3Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

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8g3 Worksheets - Reflecting on Coordinate Plane worksheet

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Reflecting on Coordinate Plane

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Reflect a shape across the x-axis or y-axis to draw its mirror image.
Use the x- and y-coordinates of points to plot the reflected shape in the right place.
Apply the reflection rules to change coordinates correctly, like flipping the sign of x or y.
Check that the original and reflected shapes are the same size and the same distance from the axis.

8g3 Worksheets - Rotating on Coordinate Plane worksheet

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Rotating on Coordinate Plane

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Rotate a shape on a coordinate grid by 90°, 180°, or 270° in the direction given.
Use the origin as the center of rotation and keep the shape’s size and orientation changes correct.
Plot the new points after a rotation and connect them to redraw the rotated shape.
Use rotation rules to predict how (x, y) coordinates change when turning a figure.

8g3 Worksheets - Translating on Coordinate Plane worksheet

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Translating on Coordinate Plane

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Practice sliding a shape left, right, up, or down on a coordinate grid without turning it.
Use ordered pairs (x, y) to track how each vertex moves during a translation.
Follow a translation rule or vector (like (x + 3, y - 2)) to move a figure the correct amount.
Plot the translated points and connect them to draw the new image in the right place.
Check that the translated shape stays the same size and orientation as the original.

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