5.5 Dilations & Scale Drawings

5.5 Dilations & Scale Drawings

Or as your book puts it...

Multiple Choice

In a dilation what mathematical operation is used with the scale factor?

• addition 
• subtraction 
• multiplication 
• division 

Multiple Choice

Does the image show a Dilation?

• Yes
• No

Multiple Choice

Does the image show a dilation?

• Yes
• No

Multiple Choice

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True
• False

Multiple Choice

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

Multiple Choice

A dilation produces a congruent figure

• True

• False

Multiple Choice

A dilation produces a similar figure

• True
• False

Multiple Choice

A dilation is which of the following: 

• only an enlargement
• only a reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

Multiple Choice

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Open Ended

Is Figure B an enlargement of Figure A? Explain why or why not.

Open Ended

Explain why Copy 3 is NOT a scale drawing of the original triangle.

Multiple Choice

Which copies are scale drawings when compared to the original triangle?

• 1, 2, and 3

• 1 and 2

• 2 and 3

• 1

• 2

Fill in the Blanks

The scale factor is

to enlarge triangle ABC to triangle DEF?

Multiple Choice

What change was made to the actual horse?

• Exact Copy

• Reduction

• Enlargement

Multiple Choice

What change was made to the actual horse?

• Exact Copy

• Reduction

• Enlargement