Lines that never touch
What are parallel lines?
An angle whose measure is less than 90 degrees.
What is an acute angle?
These angles are formed from intersecting lines, share a common vertex and are congruent.
What are vertical angles?
What is the transformation? Include the directions and number of units?
Translation, 3 units up and 2 units left
What is the measure of the missing angle?
What is 118 degrees
Name the 3 lines in the picture.
Many possible answers.
an angle whose measure is greater than 90 degrees
What is an obtuse angle?
When the sum of two angles is 90 degrees, they are called _________________.
What are complementary angles?
The ordered pair for point Z is (-4, 3). If point Z is reflected across the y-axis, what is the ordered pair for Z'?
Z' (4, 3)
What is the measure of angle b?
What is 25 degrees
Lines that intersect to form right angles.
What are perpendicular lines?
an angle whose measure is equal to 180 degrees
What is a straight angle?
When 2 parallel lines are cut by a transversal, these congruent angles are INSIDE the parallel lines and on opposite sides of the transversal.
What are alternate interior angles?
What is this transformation?
What is a reflection
What is the measure of angle CAD?
What is 80 degrees
A line that intersects two other lines.
What is a transversal?
A tool used to measure the degree of an angle
What is a protractor?
Two angles whose sum of their measures equals 180 degrees
What are supplementary angles?
What is this transformation?
What is a dilation
What is the measure of angle 1 and angle 2?
Angle 1 - 108 degrees
Angle 2 - 72 degrees
Name two sides that are congruent.
Many possible answers.
an angle whose measure is equal to 90 degrees
What is a right angle?
Two angles form a straight line. The measure of one of the angles is 75 degrees. What is the measure of the other angle?
180 - 75 = 105 degrees
The coordinates for point A is (5,2). Point A is reflected across the x-axis. What are the coordinates for A'?
A' (5,-2)
Find the measures of the missing angles.
x = 122 degrees
y = 58 degrees
z = 122 degrees