Rigid Transformations
Dilations 1
Dilation 2
Similarity
Random
200
To "flip" a figure over a line
Reflection
200
True or False? Dilations always make a figure smaller.
False
200
Is a dilation of 7/5 an enlargement or reduction?
Enlargement (Gets bigger)
200
Give the dimensions of another rectangle that is similar to these two rectangles.
200
He was the first U.S. president to live in the White House.
Who is John Adams?
400
To "slide" a figure.
Translation
400
A dilation might change the size of a figure's side lengths but never the _______.
angles or shape
400
What transformations can be used to prove similarity.
List them all!
1) Translations
2) Rotations
3) Reflections
4) Dilations
400
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
400
This gas makes up about 78% of Earth’s atmosphere.
What is nitrogen?
600
To "turn" a figure clockwise or counter clockwise
Rotation
600
Dilations always produce ___________ figures.
similar
600
If the scale factor is greater than 1 (ex:2) then the dilated image is ______________ from the original figure.
Enlarged
600
Congruent figures are _____ similar.
(sometimes, always)
always
600
This country is both an island and a continent.
What is Australia?
800
When we describe a translation we need to be sure to say:
1) Direction
2) Distance
800
Dilations need these two things.
1) Center Point of Dilation
2) Scale Factor
800
If the scale factor is less than 1 (ex:1/4) then the dilated image is ____________ from the original figure.
Reduced
800
Similar figures are ____ congruent.
(sometimes, always)
sometimes
800
In the Harry Potter series, this is the name of Harry’s pet owl.
Who is Hedwig?
1000
Describing a rotation requires these three things.
1) Center (Point)
2) Rotation angle (Degrees)
3) Direction (Clockwise or Counterclockwise)
1000
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
1000
Dilations can result in a congruent figure if their scale factor is this number.
1
1000
These two triangles are similar. Find the missing side lengths.
s=12
t=15
1000
The value of pi rounded to two decimal places.
3.14