Complementary & Supplementary Angles Flashcards
What are complementary angles?
Two angles that add up to 90 degrees.
What are supplementary angles?
Two angles that add up to 180 degrees.
True or False: Complementary angles can be adjacent.
True.
If one angle measures 30 degrees, what is the measure of its complementary angle?
60 degrees.
If two angles are supplementary and one measures 110 degrees, what is the measure of the other angle?
70 degrees.
Fill in the blank: The sum of complementary angles is ____ degrees.
90.
Fill in the blank: The sum of supplementary angles is ____ degrees.
180.
Are 45 degrees and 45 degrees complementary angles?
Yes.
Are 90 degrees and 90 degrees supplementary angles?
No.
What is the relationship between complementary angles?
Their measures add up to 90 degrees.
What is the relationship between supplementary angles?
Their measures add up to 180 degrees.
True or False: An angle of 0 degrees can be part of a complementary angle pair.
True.
If angle A is 40 degrees, what is the measure of angle B if they are complementary?
50 degrees.
If angle C is 150 degrees, what is the measure of angle D if they are supplementary?
30 degrees.
Can two angles both be obtuse and supplementary?
No.
What type of angle is formed by two complementary angles?
A right angle.
True or False: Complementary angles can be measured in radians.
True.
What is the measure of an angle that is complementary to a 60-degree angle?
30 degrees.
What is the measure of an angle that is supplementary to a 120-degree angle?
60 degrees.
Fill in the blank: The angles 70 degrees and ____ degrees are supplementary.
110.
If angle E measures 75 degrees, what is the complementary angle?
15 degrees.
If two angles are complementary and one is 25 degrees, what is the other?
65 degrees.
What is the total sum of all angles in a triangle?
180 degrees.
True or False: If two angles are complementary, they can also be supplementary.
False.
