**Related Pages**

Math Worksheets

Lessons for Fourth Grade

Free Printable Worksheets

Printable “Angle” Worksheets:

Angles on a Straight Line

Angles at a Point

Vertical Angles

Complementary Angles

Supplementary Angles

Complementary & Supplementary Angles

Calculate Adjacent Angles

How to use the addition of adjacent angle measures to solve problems using a symbol for the unknown angle measure?

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

When two angles add to 90° (right angle), we say that they are complementary angles.

When two angles add to 180° (straight angle), we say that they are supplementary angles.

Full angles measure exactly 360 degrees. They form a complete circle.

When two lines intersect, the vertically opposite angles are equal in measure. They are called vertical angles.

Have a look at this video if you need help on how to find unknown angle measure.

Click on the following worksheet to get a printable pdf document.

Scroll down the page for more **Adjacent Angles Worksheets**.

**Printable**

(Answers on the second page.)

Adjacent Angles Worksheet #1 (complementary & supplementary angles)

Adjacent Angles Worksheet #2 (complementary & supplementary angles)

Adjacent Angles Worksheet #3 (complementary & supplementary angles)

Adjacent Angles Worksheet #4 (complementary & supplementary angles)

Adjacent Angles Worksheet #5 (full & vertical angles)

Adjacent Angles Worksheet #6 (full & vertical angles)

Adjacent Angles

Problems with Unknown Angles

Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.

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