PA Unit 2 End Assessment

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

• True
• False

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

• True
• False

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

• addition 
• subtraction 
• multiplication 
• division 

Similar figures have the same ______ but different ______. 

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

If two figures are similar, the corresponding angles are...

• Congruent

• Supplementary

• Proportional

• Different

How does a dilation change the angles of a polygon?

• It changes by the scale factor.
• Dilations do not change the angles.
• It is impossible to answer this question.  The angles change unpredictably.
• The angles all change to larger angles.

Are the triangles similar?

• Yes
• No

Find side length X.

• 30
• 25
• 15
• 40

Find side length X.

• 30
• 25
• 15
• 40

Solve for X.

• 2 ft
• 3 ft
• 4 ft
• 6 ft