Angle Identification Worksheet
Identify and classify different types of angles, including acute, obtuse, right, and straight angles, and practice finding angle measures.
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Angle Identification Worksheet
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Read each question carefully and follow the instructions. Identify and classify the angles shown or described. Show your work where necessary.
1. What type of angle measures exactly 90 degrees?
Acute angle
Obtuse angle
Right angle
Straight angle
2. An angle that measures less than 90 degrees is called a(n) angle.
Obtuse
Acute
Right
Straight
3. An angle that measures exactly 180 degrees is called a angle.
4. An angle that measures greater than 90 degrees but less than 180 degrees is called an angle.
For each angle below, classify it as acute, obtuse, right, or straight.
5. Type:
6. Type:
7. Type:
8. Type:
9. Two angles that add up to 90 degrees are called supplementary angles.
True
False
10. Adjacent angles share a common vertex and a common side.
True
False
11. If two angles are complementary and one angle measures 35 degrees, what is the measure of the other angle?
12. A straight angle is divided into two angles. If one angle measures 70 degrees, what is the measure of the other angle?