Worksheet

Measure Angles

Grade 4 - Math - Building Confidence

NameDate

  1. An angle measures 25 degrees on a protractor. What is its measure in degrees?

  2. Classify an angle that measures 90 degrees.

    • straight
    • obtuse
    • right
    • acute

  3. Two angles form a straight angle. One angle is 40 degrees. What is the other angle?

  4. Two angles form a right angle. One angle is 40 degrees. What is the other angle?

  5. An angle measures 120 degrees on a protractor. What is its measure in degrees?

  6. Classify an angle that measures 105 degrees.

    • acute
    • straight
    • obtuse
    • right

  7. Two angles form a straight angle. One angle is 90 degrees. What is the other angle?

  8. Two angles form a right angle. One angle is 70 degrees. What is the other angle?

  9. An angle measures 40 degrees on a protractor. What is its measure in degrees?

  10. Classify an angle that measures 25 degrees.

    • straight
    • acute
    • obtuse
    • right
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