Questions and Answers
What is an angle that measures more than 0° but less than 90°?
What do you call two angles that have a common vertex and side but are not overlapping?
Adjacent Angles
What is the name of two angles whose sum is 90°?
Complementary Angles
What is an angle that measures more than 90° but less than 180°?
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What do you call an angle that measures exactly 90°?
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What do you call an angle that measures exactly 180°?
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What do you call two angles whose sum is 180°?
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What is the point where two line segments, lines, or rays meet to form an angle called?
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What do you call angles that are opposite from one another at the intersection of two lines?
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What is an angle measured at 125°?
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What is an angle measured at 90°?
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What is an angle measured at 38°?
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What is an angle measured at 180°?
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Complementary angles have a sum of 90°.
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If angle 1 measures 98° and angle 2 measures 72°, then the two angles are supplementary.
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Study Notes
Angle Types
- Acute Angle: Measures more than 0° and less than 90°.
- Obtuse Angle: Measures more than 90° but less than 180°.
- Right Angle: Measures exactly 90°.
- Straight Angle: Measures exactly 180°.
Angle Relationships
- Adjacent Angles: Share a common vertex and side but do not overlap.
- Complementary Angles: Two angles whose sum equals 90°.
- Supplementary Angles: Two angles whose sum equals 180°.
- Vertical Angles: Opposite angles formed by intersecting lines; they are congruent.
Angle Measurements
- Example of Acute Angle: 38°.
- Example of Right Angle: 90°.
- Example of Obtuse Angle: 125°.
- Example of Straight Angle: 180°.
True/False Statements
- Complementary angles have a sum of 90° (True).
- If one angle measures 98° and another measures 72°, they are not supplementary (False).
Studying That Suits You
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Description
Enhance your understanding of angles with these flashcards. This quiz covers key concepts including acute, adjacent, complementary, and obtuse angles. Perfect for students looking to master angle classification in geometry.
