Angle Pairs Worksheet
Explore different types of angle pairs including complementary, supplementary, vertical, and adjacent angles with this Grade 9 geometry worksheet.
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Angle Pairs Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is the sum of two complementary angles?
90 degrees
180 degrees
360 degrees
0 degrees
2. Which of the following describes angles that are opposite each other when two lines intersect?
Adjacent angles
Complementary angles
Supplementary angles
Vertical angles
3. Two angles are if their sum is 180 degrees.
4. Angles that share a common vertex and a common side but no common interior points are called angles.
5. If angle A measures 40 degrees, what is the measure of its complement?
6. Two intersecting lines form angles. If one angle is 110 degrees, what is the measure of the vertical angle?
7. Refer to the diagram below. Identify a pair of adjacent angles and a pair of vertical angles.
Adjacent Angles:
Vertical Angles:
8. Draw two intersecting lines and label a pair of supplementary angles as 'x' and 'y'.
9. All adjacent angles are also supplementary angles.
True
False
10. Vertical angles are always congruent.
True
False
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