Vocabulary
The measure of supplementary angles always add to this.
180 degrees
The measure of complimentary angles always add to this.
90 degrees
An angle measures 20 degrees, its supplementary angle measures 180. True or False
False
The device used to measure angles
a protractor
One angle measures 80 degrees, what does the supplementary angle have to measure?
100?
The following angles are complimentary angles: 35 degrees and 75 degrees. True or False
False
Are 17 and 183 supplementary angles?
No
Two lines that will never cross or intersect are called this.
Parallel lines
The following angles are supplementary angles: 35 degrees and 145 degrees. True or False
True
<1 and <2 are complementary. <1 is 8x-6 and <2 is 3x+30. What are the measurements of <1 and <2?
<1=42 degrees
<2=48 degrees
Are 50 and 40 degree angles supplementary?
No, they are complimentary
Vertical angles are congruent. True or False
True
Two angles are supplementary. <1 is 2x+3 and <2 is 6x+17. What are the measurements of <1 and <2?
43 and 137 degrees
<3 is a complement to <4. <3 is 2x+9 and <4 is 5x+18. What are the measurements of <3 and <4?
<3 is 27 degrees and <4 is 63 degrees
Are 100 and 80 degree angles supplementary to each other?
Yes
Describe adjacent complimentary angles.
The are side by side angles that add up to 90 degrees.
An anlge that measures greater than 180
What is a reflex angle?
Supplementary angles are always made from the sum of one acute angle and one obtuse angle. True or False
False. You could add two right angles together.
Two angles are complementary. If the ratio of the angles is 7:2, what are the angle measures?
70 and 20 degrees
Can angles be supplementary and complementary at the same time?
No
Give a real life example of a complementary angle you can see in the room.