Degrees in Geometry: Understanding Angle Measurements
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Questions and Answers

What do degrees measure in terms of angles?

  • Rotation (correct)
  • Temperature
  • Volume
  • Length
  • Which type of angle measures less than 90 degrees?

  • Obtuse angle
  • Straight angle
  • Right angle
  • Acute angle (correct)
  • What is the sum of complementary angles?

  • 360 degrees
  • 180 degrees
  • 90 degrees (correct)
  • 45 degrees
  • Which tool is commonly used to measure angles?

    <p>Protractor</p> Signup and view all the answers

    What should you do to find an unknown angle in a complementary pair?

    <p>Subtract the given angle from the total measure</p> Signup and view all the answers

    Study Notes

    • Angles are measured in degrees, which represent rotation rather than length.
    • A degree is a small amount of rotation, with a full circle being 360 degrees.
    • Common angle measurements include acute angles (less than 90 degrees), right angles (90 degrees), obtuse angles (more than 90 degrees but less than 180 degrees), and straight angles (180 degrees).
    • A protractor is used to measure angles, with the center representing the axis of rotation.
    • Complementary angles add up to a right angle (90 degrees), and supplementary angles add up to a straight angle (180 degrees).
    • To find an unknown angle in a complementary or supplementary pair, subtract the given angle from the total angle measure.
    • Understanding degrees in geometry is crucial for measuring angles accurately and solving angle-related problems effectively.

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    Description

    Learn about degrees as units for measuring angles in geometry, including acute, obtuse, right, and straight angles. Explore the use of protractors and concepts of complementary and supplementary angles for angle calculations.

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