Dilations Intro

Apply the following rule to the point (-5,6):
(x,y)-->(y,-x)

• (-5,-6)
• (5,-6)
• (6,5)
• (-6,5)

A type of transformation where a figure is “flipped” over a line of symmetry. A reflection produces a mirror image of a figure.

• rotation
• translation
• dilation
• reflection

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

• rotation
• translation
• reflection
• dilation

The original figure prior to a transformation.

• Pre-image
• Image

Rigid Motions

• Transformations that preserve the shape and size of a figure

• Transformations that preserve the shape but change the size of a figure

• Transformations that preserve the size but change the shape of a figure

• Transformations that change the shape and size of a figure

Translation

• Slides a figure from one position to another without turning it

• The original geometric figure

• Having the same size and shape

• Angles or sides that have the same relative position in geometric figures

True or False?
A rigid motion preserves angles measures but not side lengths of a figure.

• True
• False

Dilation changes a shape's __________?

• Size

• Position

• Form

• Orientation

A dilation produces a congruent figure

• True

• False

Which of the following statements is true about dilations?

• Dilations do not affect the size or shape of a figure.

• Dilations change the shape of a figure without changing its size.

• Dilations change the size of a figure without changing its shape.