Angle Measures Worksheet
Grade 8 Math worksheet focusing on understanding and calculating angle measures, including complementary, supplementary, and angles in polygons.
Includes
Standards
Topics
Angle Measures Practice
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is the measure of an angle that is complementary to an angle measuring 35°?
45°
55°
145°
180°
2. Two angles are supplementary. If one angle measures 110°, what is the measure of the other angle?
70°
90°
180°
250°
3. The sum of the angles in a triangle is always degrees.
4. A straight angle measures degrees.
5. An angle that measures exactly 90 degrees is called a angle.
6. Draw an obtuse angle and label it ∠ABC. What is a possible measure for ∠ABC?
7. If two parallel lines are cut by a transversal, and one interior angle is 60°, what is the measure of its corresponding angle?
8. All acute angles measure less than 90°.
True
False
9. Vertical angles are always congruent.
True
False
10. Use the protractor image to measure the angle shown below.
Angle measure:
11. A quadrilateral has three angles measuring 80°, 100°, and 95°. What is the measure of the fourth angle?