Angle Relationships Worksheet
Explore and identify complementary, supplementary, vertical, and adjacent angles with this grade 10 worksheet.
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Topics
Angle Relationships
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Date:
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Read each question carefully and provide the best answer. Show all your work where applicable.
1. Two angles are if their sum is 90 degrees.
2. When two straight lines intersect, the angles opposite each other are called angles.
3. Angles that share a common vertex and a common side but do not overlap are called angles.
4. Two angles are if their sum is 180 degrees.
5. If angle A measures 35 degrees, what is the measure of its complementary angle?
55 degrees
145 degrees
35 degrees
90 degrees
6. Which of the following pairs of angles are supplementary?
40° and 50°
60° and 120°
90° and 90°
Both b and c
7. Look at the diagram below. Identify one pair of vertical angles and one pair of adjacent angles.
Vertical Angles:
Adjacent Angles:
8. All adjacent angles are complementary.
True
False
9. Vertical angles are always equal in measure.
True
False
10. Two angles are supplementary. One angle measures (2x + 10) degrees and the other measures (3x - 30) degrees. Find the measure of each angle.