Rigid Transformations
Dilations
Similarity
Slope
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
Slope is the measure of this.
Steepness
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
Slope is the change in ______ over _____.
Vertical distance (Y) over Horizontal distance (X)
Rise over run
200
If two triangles are similar, what do you know about their angles?
All three corresponding angles are congruent.
300
A turn in math.
Rotation
300
Dilations always produce ___________ figures.
similar
300
Congruent figures are _____ similar.
(sometimes, always)
always
300
The slope of this line.
2/3
300
What is the measure of the missing angle?
35^o
400
Describing a translation requires these two things.
1) Direction
2) Distance
400
If a dilation is made using a scale factor greater than 1, then the new figure will be ________________.
Larger, it will be an enlargement
400
Similar figures are ____ congruent.
(sometimes, always)
sometimes
400
The slope of this line.
1
400
Similar or Not? Why?
Similar - corresponding angles are congruent
500
Describing a rotation requires these two things.
1) Rotation angle (Degrees)
2) 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.
500
Dilations can result in a congruent figure if their scale factor is this number.
1
500
What is an equation for this line?
y - 4/x - 2 = 3/4
500
These two triangles are similar. Find the missing side lengths.
s=12
t=15