Complementary and Supplementary Angles

The geometry worksheets on this page can be used to introduce and review the concepts of complementary and supplementary angles.

Most worksheets on this page align with Common Core Standard 7.G.B.5.

Complementary Angles
Pairs of complimentary angles are shown. The measurement of one is given. Students must calculate the measurement of the other.
6th through 8th Grades
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This worksheet serves as a basic introduction to complementary angles. At the top, the concept is described. At the bottom, students are instructed to find the complement to each angle shown.
6th through 8th Grades
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Supplementary Angles
On each problem, students are shown two angles. The measurement of one angle is known. The other is the supplement, which must be calculated.
6th through 8th Grades
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This is a very basic introduction to supplementary angles. At the top of the page is an explanation box. Then students are shown nine angles. They need to find the supplement for each.
6th through 8th Grades
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Adding Adjacent
Angles Together
This page has illustrations of 2 adjacent angles. Students must recognize the combined angle as additive. There's also an angle word problem that requires students to divide.
4th and 5th Grades
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Complementary & Supplementary (Mixed)
Students find complements and supplements. Then they circle a pair of angles that are supplements. Then they determine whether each pair of angles is complementary, supplementary, or neither.
6th through 8th Grades
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Find the complements and supplements of the angles shown on the cards. This file includes 30 cards that can be used for learning centers, peer help sessions, or on your document camera.
6th through 8th Grades
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See also:
Angle Types and Measuring Angles

Here you'll find a collection of printables for teaching students how to measure angles with a protractor. There are also worksheets on types of angles (obtuse, acute, right).

Area of Triangles

This page has many worksheets on calculating the areas of triangles.

Surface Area

Here you'll find a selection of worksheets for teaching surface area.

Geometry Worksheet Index

Here's our geometry index page that will link you to all geometry topics on our site.

Sample Worksheet Images

Complementary Angles Worksheet


Complementary Supplementary Angles Worksheet