Transformations Review
Dilations 1
Dilation 2
Similarity
100
What is it called when you "flip" a figure?
Reflection
100
True or False? All dilations always make a figure smaller.
False
100
Is a dilation of 1.5 an enlargement or reduction?
Enlargement (Gets bigger)
100
Are these squares similar?
Yes, scale factor 1.5
200
What is it called when you "slide" a figure?
Translation
200
A dilation might change the size of a figure's side lengths but never the size of the _______.
angles
200
What transformations can be used to prove if a shape is congruent.
List them all!
1) Translations
2) Rotations
3) Reflections
200
Triangle PQR is similar to triangle DEF as shown. What is the scale factor?
sf = 2/3
300
What is it called when you "turn" a figure?
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
400
What degree of rotation puts a figure back into the same position it came from?
360 degree rotation either direction
400
Two dilation a figure, you need to know these two things, 1. Center Point of Dilation and 2. ____________.
Scale Factor
400
If the scale factor is less than 1, then the dilated image is ____________ from the original figure.
Reduced/smaller
400
T/F These triangles are not similar?
False
500
Describing a rotation requires these three things: Point of Center, Rotation angle (Degrees) and _____________.
Direction (Clockwise or Counterclockwise)
500
Daily Double
A model ATV is 8 inches long. After a dilation, the model is 2.4 inches long. The scale factor for this dilation is ...
sf = 0.3
500
DAILY DOUBLE
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