Rigid Transformations
Dilations 1
Dilation 2
Similarity
Random
100

To "flip" a figure over a line

Reflection

100

True or False? Dilations always make a figure smaller. 

False

100

Is a dilation of 7/5 an enlargement or reduction?


Enlargement (Gets bigger)

100

Give the dimensions of another rectangle that is similar to these two rectangles. 


100

When is our Unit 2 test over Dilations?

TOMORROW!!!

200

To "slide" a figure.

Translation

200

A dilation might change the size of a figure's side lengths but never the _______.

angles

200

What transformations can be used to prove similarity. 

List them all!

1) Translations

2) Rotations

3) Reflections

4) Dilations

200

Point A has the coordinates (4, -3).  What is the scale factor used if the new coordinates are (2, - 3/2)?

Scale factor = 1/2 or 0.5

200

Complete the sentence.  Corresponding sides of similar figures are ______________________

Proportional

300

To "turn" a figure clockwise or counter clockwise

Rotation

300

Dilations always produce ___________ figures.

similar

300

If the scale factor is greater than 1 (ex:2) then the dilated image is ______________ from the original figure. 

Enlarged

300

Congruent figures are _____ similar. 

(sometimes, always)

always

300

Similar or not similar?



Not similar - angles are not the same.

400

Describing a translation requires these two things. 

1) Direction

2) Distance

400

Dilations need these two things.

1) Center Point of Dilation
2) Scale Factor

400

If the scale factor is less than 1 (ex:1/4) then the dilated image is ____________ from the original figure. 

Reduced

400

Similar figures are ____ congruent. 

(sometimes, always)

sometimes

400

Find the scale factor.  Figure EFGH is the original.


Scale factor = 2

500

Describing a rotation requires these three things. 

1) Center (Point)

2) Rotation angle (Degrees)

3) Direction (Clockwise or Counterclockwise)

500

If a square is dilated using a scale factor of 2, how many times larger will the area of the new square be?

4 times larger

500

Dilations can result in a congruent figure if their scale factor is this number. 

1

500

These two triangles are similar. Find the missing side lengths.


s=12

t=15

500

A point has the coordinates (8, -2).  What are the new coordinates after a dilation using a scale factor is 1/4 and the origin as the center of dilation?


(4, -0.5)

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