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Questions and Answers
What do degrees measure in terms of angles?
What do degrees measure in terms of angles?
Which type of angle measures less than 90 degrees?
Which type of angle measures less than 90 degrees?
What is the sum of complementary angles?
What is the sum of complementary angles?
Which tool is commonly used to measure angles?
Which tool is commonly used to measure angles?
What should you do to find an unknown angle in a complementary pair?
What should you do to find an unknown angle in a complementary pair?
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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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