Transformations of Rigid Objects

A transformation that “turns” a figure about a fixed point at a given angle and a given direction.

• rotation
• translation
• reflection
• dilation

Identify the transformation from ABCD to A'B'C'D'.

• Translation
• Reflection across the x-axis
• Reflection across the y-axis
• 90^o counter clockwise rotation

If the quadrilateral is translated 4 units to the left and 5 units down what is the coordinates for Point A'?

• (4,0)
• (0,4)
• (-1,5)
• (5,-1)

Determine how to translate triangle A'B'C' to triangle ABC.

• right two, down five
• right two, down 9
• left two, down 9
• left two, down 5

What is this picture an example of?

• Reflection

• Translation

• Rotation

• Dilation

After a figure has been transformed, we call the new figure the...

• Image
• Different shape
• Figure that moved
• Prime

The mathematical term for the line that you reflect a shape over is the...

• Mirror
• Reflective tape
• Line that you reflect over
• Line of reflection

What symbol is used to show that two things are congruent?

• ≠
• ≅
• ≡
• =

Which type of rotation will not change the orientation of an object?

• 90^o rotation
• 180^o rotation
• 270^o rotation
• 360^o rotation

The original figure prior to a transformation.

• Pre-image
• Image