Angle Vocabulary
Transformations²
Find the missing angle
Find the missing angle²
100
Two angles that add up to 90 degrees
Complementary angles
100
Name all the transformations that we've covered thus far.
Translation
Reflection
Rotation
Dilation
100
Find the measure of angle B
25 degrees
100
What is the sum of all of the angles in a triangle?
180 degrees
200
What is the relationship between angle 1 and angle 2?
Supplementary angles
200
Translate this point 5 units up, then reflect it across the x-axis.
(2,5)
(2,-10)
200
What is the measure of angle C?
50 degrees
200
What is the measure of angle 1?
26 degrees
300
What is the relationship of angles 3 and 6?
Alternate interior angles
300
A triangle undergoes several transformations and results in a congruent figure.
Which of the following was NOT a possible transformation?
(A) A rotation 90 degrees CCW about the origin
(B) A translation up 2 units and left 5 units.
(C) A dilation with a scale factor of 2
(D) A reflection across the y-axis
C.
Dilations are not a rigid transformation. Rigid = congruent shape.
300
What is the measure of x?
110 degrees
300
What is the measure of angle B and angle C?
m angle B = 58 degrees
m angle C = 42 degrees
400
What is the relationship of angles 2 and 7?
Alternate exterior angles
400
Multiple choice: What transformation took place?
(A) Rotation 90 degrees clockwise about the origin
(B) Rotation 90 degrees counterclockwise about the origin
Choice B
400
Find the measure of angle h
92 degrees
400
What is the measure of the exterior angle a?
67 degrees
500
What is the relationship of angles 5 and 8?
Vertical angles (angles directly across from each other)
500
Describe the transformation (the blue figure is the starting figure/preimage)
A rotation 90 degrees clockwise about the origin (0,0)
500
Solve for x
x = 15
500
Solve for x
x = 16.66666666666666666....