Intro to Rigid Transformations Geometry

True or False: Rigid motions preserve angle measure.

• True

• False

True or False: Rigid motions preserve segment length.

• True

• False

Which of the following is NOT a rigid motion?

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If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

• (-5, 5)

• (-3, 5)

• (-5, 3)

• (-3, 3)

If you were to rotate ABCD 180° about the origin, what would the coordinates of B' be?

• (0, 0)

• (-6, -5)

• (-1, 3)

• (-6, 2)

Select the correct transformation rule.

• translation (x + 4, y + 2)

• rotation 90 degrees CCW

• rotation 90 degrees CW

• reflection across the y-axis

What is the angle of rotation for this counterclockwise rotation about the origin?

• 90°

• 180°

• 270°

• 360°

Determine where X' would be if you translated X 3 units to the left and 9 units down.

• (-4, 4)

• (-10, 2)

• (-4, -5)

• (-1, 5)

Identify the correct picture which represents a 90^o clockwise rotation about the origin.

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