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Important Geometric Terms Chart

A chart listing important geometric terms such as point, line, line segment, ray, plane, parallel lines, intersecting lines, perpendicular lines, right angle, acute angle, obtuse angle, and straight angle, each with a definition, example, and how to read it in notation.

A chart listing important geometric terms such as point, line, line segment, ray, plane, parallel lines, intersecting lines, perpendicular lines, right angle, acute angle, obtuse angle, and straight angle, each with a definition, example, and how to read it in notation.

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Show Answer Key & Explanations Step-by-step solution for: Geometry Vocabulary Sheet and Worksheets for Lines, Rays, & Angles
Final Answer:
The table defines basic geometric terms with examples and how to read them aloud. For instance:
- A point is an exact spot in space, e.g., “point Z”.
- A line is a straight path that goes on forever in both directions, e.g., “line LM” or “line segment AB” (if it has endpoints).
- A ray starts at one point and goes through another forever, e.g., “ray CD”.
- A plane is a flat surface with no edges, e.g., “plane C D B”.
- Parallel lines never intersect, e.g., “line WX is parallel to line YZ”.
- Intersecting lines cross at one point, e.g., “line AB intersects line CD”.
- Perpendicular lines form 90° angles where they meet, e.g., “line YZ is perpendicular to line WX”.
- A right angle is exactly 90°, e.g., “right angle ABC”.
- An acute angle is less than 90°, e.g., “acute angle DEF”.
- An obtuse angle is more than 90° but less than 180°, e.g., “obtuse angle GHI”.
- A straight angle is exactly 180°, e.g., “straight angle JKL”.
Parent Tip: Review the logic above to help your child master the concept of geometry terms worksheet.
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