Solving for Missing Angles with Equations

What is the definition of an acute angle?

• An angle that adds up to 180 degrees with another angle

• An angle less than 90 degrees

• An angle exactly 90 degrees

• An angle greater than 90 degrees

How can you remember the sum of complementary angles?

• It's the same as a straight angle

• By associating it with obtuse angles

• It's the same as a right angle

• By remembering the letter 'C' stands for 180

What do supplementary angles add up to?

• 45 degrees

• 180 degrees

• 90 degrees

• 360 degrees

Which angles are always congruent?

• Adjacent angles

• Vertical angles

• Complementary angles

• Supplementary angles

If one angle is 45 degrees, what is the measure of its complementary angle?

• 45 degrees

• 90 degrees

• 135 degrees

• 180 degrees

What is the sum of the measures of an angle and its supplementary angle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

How do you solve for x if an angle is represented as 3x and it forms a 90-degree angle with another angle measuring 45 degrees?

• x + 45 = 90

• 3x + 45 = 90

• 3x = 45

• 3x + 45 = 180

If two angles form a linear pair, what is their relationship?

• They are vertical angles

• They are congruent

• They are supplementary

• They are complementary

What is the measure of an angle that forms a straight line with another angle measuring 120 degrees?

• 180 degrees

• 120 degrees

• 60 degrees

• 240 degrees

If two angles are vertical and one measures 37 degrees, what is the measure of the other angle?

• 53 degrees

• 143 degrees

• 37 degrees

• 180 degrees