What kind of angle is this?
What is an obtuse angle?
Find angle DAB
90 degrees
What are complimentary angles?
What type of angle measures exactly 90 degrees?
Right angle
What kind of angle is this?
What is a straight angle?
How would you set up an equation to solve for the angle?
AOB + BOC = AOC
Define supplementary angles.
2 angles that add up to 180 degrees.
Define adjacent angles.
Two angles next to each other that share a common side.
The common endpoint of 2 sides of an angle
What is the vertex?
Find the value of X
x = 3.83
What are the 2 requirements for a Linear Pair of angles?
Adjacent and supplementary
If two angles are complementary and one measures 35 degrees, what is the measure of the other angle?
55 degrees
Two lines that intersect at a right angle.
What are perpendicular lines?
Find the value of X (assuming the 2 angles are NOT congruent).
x = 3
What is the relationship between vertical angles?
They are congruent/ equal/ the same measurement
What type(s) of relationship(s) do angles 2 and 3 have?
Supplementary, adjacent, linear pair
A ray that divides an angle into 2 congruent angles.
What is an angle bisector?
What is the phrase I repeated in class when teaching about Angle Addition Postulate? (Hint: also used in segment addition postulate)
"Part + part = whole"
Find the value of X
30
If angle ABD = 112 degrees, find the value of X.
X = 20