Dilation Scale Factor Congruency

What ratio would I use for the side 5 and its corresponding side?

• 15/5 = 3

• 21/5

• 18/5

• 7/5

Polygon A and B are similar. Give the scale factor of figure A to B.

• 4:1

• 1:4

• 4

• 2:4

Tags

CCSS.7.G.A.1

Two figures are _______ if the second can be obtained from the first by a sequence of transformations or dilations.

• congruent

• similar

• scale

• corresponding

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Choose the correct similarity transformation.

• Dilation using scale factor of 5/2 followed by a rotation 90 CCW

• Dilation with a scale factor of 5/2 followed by a y-axis reflection

• Dilation with scales factor of 5/2 followed by 90 CCW rotation and then a translation 3 units to the left and 3 units down

• 90 CCW rotation  followed by 5/2 dilation

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Select ALL that apply.

• Dilation using 2 as scale factor followed by y-axis reflection.

• X axis reflection followed by dilation using scale factor of 2

• Y axis reflection followed by dilation using scale factor of 2

• 90 CCW rotation followed by dilation using scale factor of 2

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Select the rule for the similarity transformation shown.

• 
• 
• 
• 

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Triangle EFG has vertices (-8,-4), (-8,0) and (4,0). Its image is E’F’G’ with vertices (3,6), (0,6) and (0,3) respectively. Which similarity transformation shows the two are similar?

• Dilation using scale factor of 3/4 , followed by y-axis reflection, then a 90 CCW rotation

• Dilation using scale factor of 4/3 , followed by y-axis reflection, then a 270 CCW rotation

• Dilation using scale factor of 3/4 , followed by 180 rotation, then y-axis rotation

• Dilation using scale factor of 4/3 , followed by 180 rotation, then y-axis rotation

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Select the correct congruency transformation.

• X-axis reflection, then translation 10 to the right

• 180 rotation, then y-axis reflection

• Y-axis reflection, then x-axis reflection

• Reflection over line y=-x

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

(x,y) --> (kx, ky)

• Rotation

• Reflection

• Dilation

• Translation

Tags

CCSS.8.G.A.3

If your scale factor is between 0 and 1, what happens?

• Reduction 

• Enlargement

• Rotation

• Reflection

Tags

CCSS.8.G.A.3