Rigid Transformations
What's the transformation when you flip a shape across a line?
A reflection
True or False? Dilations always make a figure smaller.
False
What does it mean for two shapes to be similar?
Two shapes are considered similar when they have the same overall shape but may be different sizes.
-corresponding angles are equal, and their
-corresponding side lengths are proportional
What is a Translation?
A slide in math.
A dilation might change the size of a figure's, the side lengths but never the _______.
The angles.
When two figures are similar, what's the relationship they have on their sides?
The sides are proportional.
What are the two required information you need when you do a Translation?
1) Direction
2) Distance
What are the two required information you need when you do Dilations?
1) Center Point of Dilation
2) Scale Factor
True or False: Similar figures are never congruent.
False
What are the three required information you need when you do a Rotation?
1) Center (Point)
2) Distance (Degrees)
3) Direction (Clockwise or Counterclockwise)
Find the images of points A(1,2), B(5,2), and C(3,5) after a dilation with scale factor 3 from the origin.
A'(3,6), B'(15,6), and C'(9,15)
Triangle T has angles 44°, 104°, and 32°.
Which one of these choices could be similar to triangle T?
A: 32°, 44°, 104°
B: 44°, 44°, 92°
C: 133°, 3°, 44°
D: 32°, 40°, 108°
A