Rigid Transformations
Dilations
Similarity
Slope
Triangles
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
!!DAILY DOUBLE!!
Slope is the change in ______ over _____.
Vertical distance (Y) over Horizontal distance (X)
Rise over run
200
If two triangles have _____ of their angles equal, the triangles are similar.
two / three
300
A flip in math.
Reflection
300
True or False? Dilations always make a figure smaller.
False
300
These two things make up the similar figures checklist.
1) Proportional corresponding sides
2) Equal corresponding angles
300
Slope is the measure of this.
Steepness
300
The sum of all interior angles in a triangle will always equal this number.
180^o
400
A turn in math.
Rotation
400
Dilations always produce ___________ figures.
similar
400
Congruent figures are _____ similar.
(sometimes, always)
always
400
The slope of this line.
2/3
400
What is the measure of the missing angle?
35^o
500
!!Daily Double!!
Describing a translation requires these two things.
1) Direction
2) Distance
500
Dilations need these two things.
1) Center Point of Dilation
2) Scale Factor
500
Similar figures are ____ congruent.
(sometimes, always)
sometimes
500
The slope of this line.
1
500
Similar or Not? Why?
Similar
1000
Describing a rotation requires these three things.
1) Center (Point)
2) Rotation angle (Degrees)
3) Direction (Clockwise or Counterclockwise)
1000
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.
1000
Dilations can result in a congruent figure if their scale factor is this number.
1
1000
What is an equation for this line?
y = (3/4)x + 2.5
1000
These two triangles are similar. Find the missing side lengths.
s=12
t=15