Solving Equations with Complementary, Supplementary, and Vertical Angles

Two angles whose sum of angle measures equals 90 degrees  

• Adjacent Angles 

• Complementary Angles

• Congruent Angles

• Supplementary Angles

Which reason justifies the statement below?
If

• Complements Theorem

• Definition of Right Angles

• Definition of Complementary Angles

• Congruent Complements Theorem

How many degrees are in an angle that is both complementary and supplementary to another angle?

• This is not possible.

Find the measure of the missing angle.

• 28° 

• 18°

• 38°

• 22°

Solve for x

• 5

• 90

• 25

• 10

A right angle is complmentary. This means, when added together, it equals ____

• 180

• 90

• the other angle

• congruent

Answer explanation

Complementary angles are any two angles whose sum is 90 degrees.

Find the value for x.

• 29^o

• 31^o

• 46.5^o

• None of the above

What is the value of x?

• 21⁰

• 90⁰

• 69⁰

Angles that add up to 90 degrees are always:

• Congruent

• Supplementary

• Complementary