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Math Unit 6: Part 1
| Term | Definition |
|---|---|
| point | An exact location in space |
| line | A straight path of points that goes on and on in two directions |
| line segment | A part of a line that has two endpoints |
| ray | A part of a line that has one endpoint and continues endlessly in one direction |
| angle | A figure formed by two rays that have the same endpoint |
| vertex | The point where two rays meet. The point where the sides of a polygon meet. The point where three or more edges of a solid figure meet |
| right angle | An angle that forms a square corner |
| acute angle | An angle that is less than a right angle |
| obtuse angle | An angle that is greater than a right angle |
| straight angle | An angle that forms a straight line |
| parallel lines | In a plane, lines that never intersect |
| intersecting lines | Lines that cross at one point |
| perpendicular lines | Two intersecting lines that form right angles |
| plane figure | A figure with only two dimensions |
| solid figure | A figure that has length, width, and height |
| edge | A line segment where two faces of a solid figure meet |
| face | A flat surface of a solid that does not roll |
| net | A pattern used to make a solid |
| polygon | A closed plane figure made up of line segments |
| side | Each of the line segments of a polygon |
| triangle | A polygon with 3 sides |
| quadrilateral | A polygon with 4 sides |
| pentagon | A plane figure with 5 sides |
| hexagon | A polygon with 6 sides |
| octagon | A polygon with 8 sides |
Created by:
RSachs
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