Which representation of a transformation on a coordinate grid preserves congruence?
I. Rotation
II. Reflection
III. Dilation
IV. Translation
I, II, and IV
What types of angles are 1 & 5?
Corresponding Angles
What is the measure of angle 3?
45 degrees
Which angle is the vertical angle of A?
What is C?
Two Angles whose sum is 90o are said to be...
What is Complementary?
State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor k = 2.
(8,18)
What types of angles are ∠1 and ∠4?
Vertical Angles
***Bonus***
What is the measurement of angle 8?
135 degrees
True or False:
Adjacent Angles are supplementary.
True
Two Angles whose sum is 180o are said to be...
What is Supplementary?
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)
A'(9,9) B'(18,18) C'(27,9)
What types of angles are 1 & 8?
Alternate Exterior Angles
What is the value of y?
y = 29
When Two lines intersect, how many angles are formed?
4
What is the measure of angle EDH?

What is 50o
***Bonus***
State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.
(-5,-3)
What types of angles are 2 & 8?
Same-Side Exterior Angles
What is the value of x?
13
Solve for x

What is 45
What is the measure of angle CBE?

What is 72o
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
¼
***Bonus***
What types of angles are 1 & 3?
Linear Pair
What is the value of y?
y = 10

What is 23?
Three angles add up to 180o
Angle 1=5x+5
Angle 2= 9x+6
Angle 3= x+3
What is the measure of angle 1?
60.33