Rigid Transformations
Dilations
Similarity
Triangles
100
A flip in math.
Reflection
100
True or False? Dilations always make a figure smaller.
False
100
These two things make up the similar figures checklist.
1) Proportional corresponding sides
2) Equal corresponding angles
100
The sum of all interior angles in a triangle will always equal this number.
180^o
200
A slide in math.
Translation
200
A dilation might change the size of a figure's side lengths but never the _______.
angles
200
What geometric transformations can be used to prove similarity.
1) Translations
2) Rotations
3) Reflections
4) Dilations
200
If two triangles have _____ of their angles equal, the triangles are similar.
two / three
300
A turn in math.
Rotation
300
Dilations always produce figures that are either _________ or __________ of the original.
Enlargements, Reductions.
300
Congruent figures are _____ similar.
(sometimes, always)
always
300
What is the measure of the missing angle?
35^o
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
Similar figures are ____ congruent.
(sometimes, always)
sometimes
400
Similar or Not? Why?
Similar
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?
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