Intro to Dilations

What type of transformation results in a similar (proportional) figure?

• dilation

• translation

• reflection

• rotation

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What type of transformation results in a turn of an image (clockwise or counter-clockwise) around a fixed point?

• dilation

• translation

• reflection

• rotation

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Dilations can only result in images getting larger.

• TRUE

• FALSE

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Which image was the pre-image?

• ABCD

• A'B'C'D'

Tags

CCSS.8.G.A.2

Triangle D is pre-image and has a scale factor of 1. What must be true of triangles E, F, and G?

• scale factors are greater than 1

• scale factors are less than 1

• scale factors are equal to 1

• the triangles are congruent to triangle D

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle D is pre-image and has a scale factor of 1. What must be true of triangles A, B, and C?

• scale factors are greater than 1

• scale factors are less than 1

• scale factors are equal to 1

• the triangles are congruent to triangle D

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle C is a dilation of the original. What scale factor was used to create triangle C from the original?

• 2

• 4

• 0.5

• 8

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle A and C are both _______ to the original.

• similar

• congruent

• smaller than

• equal in size

Tags

CCSS.8.G.A.4

The image (larger triangle) has dimensions that are ____ times the size of the pre-image.

• 1

• 2

• 4

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What scale factor could be used to dilate image ABCD to become A'B'C'D'?

• 1

• 2

• 4

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4