Questions and Answers
What is an angle?
Formed by two rays or line segments that share a common endpoint
What is an acute angle?
An angle with a measure of less than 90 degrees
What is an obtuse angle?
An angle with a measure of greater than 90 degrees
What is a right angle?
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What is a straight angle?
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What are adjacent angles?
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What does 90⁰ represent?
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What is the name of angle ABC?
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What is the name of angle BAC?
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What is the name of angle CEB?
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What is the name of angle BCA?
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What is the name of angle BED?
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What is the name of angle BAM?
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What is the name of angle AEC?
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What is the name of angle GFC?
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The two sides of an angle are called ________________.
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What is the name of angle DEA?
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Study Notes
Angle Basics
- An angle is created by two rays or line segments that share a common endpoint.
- The common endpoint is known as the vertex of the angle.
Types of Angles
- Acute Angle: Measures less than 90 degrees, indicating a sharp or narrow angle.
- Obtuse Angle: Measures greater than 90 degrees but less than 180 degrees, producing a wider angle.
- Right Angle: Exactly measures 90 degrees, often represented by a small square at the vertex in diagrams.
- Straight Angle: Measures exactly 180 degrees, forming a straight line.
Angle Relationships
- Adjacent Angles: Two angles that share a common side and vertex but do not overlap.
Angle Naming Conventions
- Angles can be named using three points. For instance, ABC refers to one way to denote an angle, where the vertex is the middle letter.
- Different arrangements of points can denote the same angle; for example, BAC also refers to the same angle as ABC.
- Naming can also specify angles in certain color-coded contexts, as seen with angles labeled CEB, BED, BAM, AEC, and GFC, all identified by visual cues like color.
Rays
- The two sides of an angle are referred to as rays. Each ray extends infinitely in one direction from the vertex.
Symbol for Right Angle
- The symbol 90⁰ indicates an angle that is a right angle.
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Description
This quiz helps you learn and recall different types of angles, including acute, obtuse, right, and straight angles. Understand the definitions and characteristics of each angle type to enhance your geometry knowledge.
