An angle that measures exactly 90o.
What is a right angle?
If Triangle A has angles 90o & 30o, what is the other angle?
60o
Translating a image 2 units up and 2 units to the right is an example of what?
A translation
A triangle has angle measures A(60o), B(60o), and C(x). What is the value of x?
60o
Two angles that add up to 90o.
A transformation that turns a figure around a fixed point.
What is a rotation?
All angles inside a triangle add up to _____ degrees.
180!
True/False: Two squares with the same side lengths are congruent.
True
Is it possible to make a triangle with angle measures (50o, 90o, & 50o?
No
Sides that have the same relative position in two different figures.
What are Corresponding Sides?
Two angles whose measures add up to 180o.
If a triangle has the following two angles, what is the third angle. 45 & 45
90!
Point A is at (1,3), if it is reflected over the x-axis, what is the reflected coordinate?
(1, -3)
If the point A (1,2) was reflected over the x-axis, what would A' be?
(1,-2)
Angles inside two lines and on opposite sides of a transversal.
What are alternate interior angles?
A transformation that preserves the size and shape of a figure.
What is a rigid transformation?
If a triangle has side length 3, 4, & 5 and it undergoes a 60o rotation and then a reflection. What are the side lengths after the transformations?
3, 4, & 5
Coordinate of Point B is (-1,5) and is rotated 180o around the origin. What is the new coordinate after the transformation?
(-1, -5)
Can a triangle be made up of 90o, 45o, and 50o?
NO WAY JOSE
Angles that are opposite each other.
What are vertical angles?
A line that intersects two or more lines at different points.
What is a transversal?
If a triangle has a right angle, and one angle that measures 33o, what is the measure of the last angle?
57o
Name all 4 types of transformations.
1. Rotation
2. Reflection
3. Translation
4. Dilation
A triangle has angle measures A(x), B(x+20), and C(3x+50). What is the measure of angle B?
44o
A transformation that flips a figure across a line.
What is a Reflection?