What type of transformation always leaves the shape congruent to the original shape?
Rigid motion or Rigid Transformation
Sum of complementary angles
90 Degrees
Angles A and B are Complementary angles. Angle A measures 28 degrees. Angle B measures ___.
62 degrees
A line that crosses two or more other lines in a plane?
traversal line
The point (2, 5) is translated using the rule:
(x + 3, y - 1)
What is the new coordinate for the new positition?
(5, 4)
What is the name of an angle that measures 180 degrees?
straight
Sum of supplementary angles
180 Degrees
What is the measurement of angle x?

53 degrees?
The type of lines that NEVER intersect
Parallel Lines
A triangle undergoes the transformation using the rule (-x , y)
What transformation has occurred?
Reflection across the y axis.
Write give an example of a pair of supplementary angles (WITH actual numbers!)
Many examples!
100 and 80
170 and 10
90 and 90
and many more!
Angles on the same side of a transversal are called
Consecutive angles
Solve for x
14x+2 = 13x+9
x = 7
The pair of blue angles in this image are congruent, known as:
Corresponding Angles
Write the algebra rule that summarizes the transformation: 
If an angle measures 34 degrees, what type of angle is it?
acute
Angles that are next to each other
Adjacent Angles
Write the equation to solve for x
28o + xo + 73o = 180o
xo = 79o
The two angles below are known as:
Alternate Interior angles
The coordinate (-1, 6) is transformed by a series of transformations:
1) Reflected across the x-axis
2) Translated up 4 units.
What is the new coordinate position?
(-1, -2)
Complementary angles add up to _____
90 Degrees
Vertically opposite angles are always __________
Congruent (the same)
Two angles are supplementary.
Angle <A = 4x + 20
Angle <B = x + 60
What is the measure of angle A?
x = 20
<A = 4(20)+20 = 100
Name three pairs of supplementary angles in this diagram.
Many! Any consecutive angles, any linear pairs, or any more that Stover approves :)
The coordinate (-5, 10) is transformed by two transformations, and the result is (5, 6).
What are two possible transformations that could result in this new coordinate?
Many options!
One possible answer: reflect across the y-axis, translate down 4