# Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

### Popular Tutorials in Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

#### How Do You Use Complementary Angles to Find a Missing Angle?

If two angles are complementary, that means that they add up to 90 degrees. This is very useful knowledge if you have a figure with complementary angles and you know the measurement of one of those angles. In this tutorial, see how to use what you know about complementary angles to find a missing angle measurement!

#### How Do You Use Supplementary Angles to Find a Missing Angle?

If angles combine to form a straight angle, then those angles are called supplementary. In this tutorial, you'll see how to use your knowledge of supplementary angles to set up an equation and solve for a missing angle measurement. Take a look!

#### How Do You Find Angle Measures for Adjacent Angles?

Learning how to find missing angle measurements is a very useful skill. In this tutorial, get some practice finding missing angle measurements by first creating an equation. Take a look!

#### What are Complementary Angles?

Do complementary angles always have something nice to say? Maybe. One thing complementary angles always do is add up to 90 degrees. In this tutorial, learn about complementary angles and see how to use this knowledge to solve a problem involving these special types of angles!

#### What are Supplementary Angles?

Knowing about supplementary angles can be very useful in solving for missing angle measurements. This tutorial introduces you to supplementary angles and shows you how to use them to solve for a missing angle measurement. Take a look!

#### What are Vertical Angles?

Vertical angles have a very special quality. They are always congruent to one another! Check out this tutorial to learn about and see how to identify vertical angles!