Types of Angles
What is an obtuse angle?
An angle that measures more than 90 degrees
Angles "A" and "B" are congruent, if the measure of angle A is 25 degrees, that is the measure of angle B?
25 degrees
What is the total measure in degrees of a linear pair?
180 degrees
Angles 7 and 8 are complementary angles, if the measure of angle 7 is 30, what is the measure of angle 8?
60 degrees
What are perpendicular lines?
Lines that intercept at a 90 degree angle.
What are vertical angles?
Angles opposite to each other when two lines intercept.
Any positive real number less than 90.
Angles 1 and 2 form a linear pair, if the measure of angle 2 is 130, what is the measure of angle 1?
50 degrees
Angles 4 and 9 are supplementary, if the measure of angle 4 is 110, what is the measure of angle 9?
70 degrees
If two lines are perpendicular, what is the measure of each angle formed?
90 degrees
What are complementary angles?
Angles "A" and "B" are vertical angles, if the measure of angle "B" equals 100 degrees, what is the measure of angle "A"?
100 degrees
Angles 1 and 2 from a linear pair, if the measure of angle 1 is 10x and the measure of angle 2 is 8x, what is the measure in degrees of angle 1?
100 degrees
Angles 1 and 2 are complementary angles, if the measure of angle 1 is 2x and the measure of angle 2 is 50, what is the value of x?
x = 20
If two lines are perpendicular, what can you tell me about the measure of a pair of vertical angles?
Each angle measures 90 degrees
Angles that together add up to 180 degrees.
Describe the difference between a pair of complementary angles and a pair of supplementary angles.
Complementary angles add up to 90 degrees and supplementary angles add up to 180 degrees.
Angles A and B from a linear pair, if the measure of angle A is 5x and the measure of angle B is 4x, what is the measure, in degrees, of angle B?
80 degrees
Angles 1 and 2 are supplementary angles, if the measure of angle 1 is 12x and the measure of angle 2 is 8x, what is the measure of angle 1 in degrees?
108 degrees
Parallel lines never intercept, while perpendicular lines intercept at a 90 degree angle
What is a linear pair of angles?
Two adjacent angles that form a straight line.
Angles "P" and "Q" are congruent, if angle "P" measures 50 degrees and angle "Q" measures 2x, what is the value of x?
x=25
Angles 1 and 2 from a linear pair, if the measure of angle 1 is x+2 and the measure of angle 2 is 4x+8, what is the measure, in degrees, of angle 1?
36 degrees
Angles 1 and 2 are complementary angles, if the measure of angle 1 is x+2 and the measure of angle 2 is 4x+8, what is the measure of angle 2 in degrees?
72 degrees
Using any letters in the word "perpendicular" create another english word.
ex: Purple