Dilation

Triangle DOG has coordinates D (0,0) O (0,4) and G ( 1,5) where is O' after a dilation of scale factor 7

• (7,35)

• (7,28)

• (0,28)

• (0,0)

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

Is this an enlargement or a reduction?

• Enlargement

• Reduction

Figure A'B'C'D' is a dilation of Figure ABCD. What scale factor was used to create A'B'C'D'?

• 1/3

• 3/5

• 3

• 10

Figure 2 is a dilation of figure 1. What scale factor was used to create object 2?

The length of side AB in Triangle ABC is 32 meters. After a dilation of ³/₄ what would be the length of side A'B'?

Triangle DEF is a dilation of Triangle ABC. What scale factor is used to create triangle DEF?

The length of ST in Polygon STUV is 12 feet. What would be the length of S'T' if we use a scale factor of ¹/₄?

• 48

• 4

• 3

• 6

Select the FALSE statements

• Dilations always increase the length of the line segments

• Perpendicular lines remain perpendicular after a dilation

• Corresponding angles remain congruent after dilations

• Dilations increase angle measurements

A triangle similar to Triangle JMN will be drawn using points J and K. What could be the coordinates of the third point?

• (-5,-15)

• (-5,-7)

• (-1,-11)

• (-1,-3)