Who am I?
a right angle measures..
What is exactly 90?
40 degrees
What is 50 degrees?
The equation 30 + x = 90 shows this relationship.
What is complementary?
angles that add up to 90 degrees
What are complementary angles?
an acute angle measures
What is less than 90 degrees?
40 + 140 = 180 degrees shows this angle relationship.
What is supplementary?
angles that add up to 180 degrees
What are supplementary angles?
an obtuse angle measures
What is greater than 90 and less than 180?
Two angles are congruent because they are opposite from each other
What are vertical angles?
angles are congruent because they are opposite from each other are also called this
What are vertical angles?
a straight angle measures
What is exactly 180 and forms a straight line?
If one angle of a vertical pair measures 4x +5, what does the other angle measure?
What is 4x + 5
angles that share a side and a vertex are called this
What is adjacent?
a reflex angle measures
What is greater than 180 and less than 360?
5x
What is 90 - 5x?
Angle a and angle b sum to measure 180 degrees, what is their relationship?
What are supplementary angles?
Name the vertex of this angle:<BCA
What is C ?