Rigid Transformations
Dilations 1
Dilation 2
Similarity
Random
100
To "flip" a figure.
Reflection
100
True or False? Dilations always make a figure smaller.
False
100
Is a dilation of 1.5 an enlargement or reduction?
Enlargement (Gets bigger)
100
A triangle has 180 degrees. Triangle A has angles 50 degrees and 70 degrees. Triangle B has angles of 70 degrees and 50 degrees. Are the two triangles similar?
Yes! They both would have angles of 50 degrees, 70 degrees, and 60 degrees since 50+70=120 and 180-120=60
100
What does it rain on Neptune, Saturn, and Jupiter?
Diamonds.
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
These two triangles are similar. Find the Value of a÷b.
a/b = 1.5
200
True or False? Koala fingerprints have confused forensic investigators.
Yes! Koala fingerprints are very VERY similar to human fingerprints.
300
To "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
300
True or False? Bubble wrap was originally invented to be packging material.
False, it was originally invented to be textured wallpaper.
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
True or False? Honey will go bad.
False! Edible Honey has been found in ancient Egyptian tombs.
500
Describing a rotation requires these three things.
1) Center (Point)
2) Rotation angle (Degrees)
3) Direction (Clockwise or Counterclockwise)
500
How will dilating a figure with a scale factor of 1/3 change a figure? How many times bigger or smaller will it get?
It will make the figure 3 times smaller from the center of dilation.
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
True or False? In the 1830s, Ketchup was sold as medicine.
True, it was specifically promoted as a cure for diarrhea.