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4th Geometry Unit 1
4th Gr Geomerty vocab unit 1
| Term | Definition |
|---|---|
| points | an exact location in space labeled with a capital letter |
| angle | a figure formed by 2 rays or 2 line segments with a common endpoint called a vertex |
| endpoint | a point at the end of a line segment or ray |
| line | a straight path that extends forever in opposite directions |
| line segment | a part of a line between and including two endpoints |
| parallel lines | lines in a plane that will never intersect |
| quadrangle/quadrilateral | a 4 sided polygon |
| polygon | A 2-dimensional figure formed by 3 or more line segments that meet only at their endpoints to make a closed path. The sides may not cross each other. |
| parallelogram | a quadrilateral (4 sided figure) with 2 pairs of parallel sides. Opposite sides and angles have the same measure. |
| convex polygon | A polygon on which all vertices appear to be "pushed outward" |
| concave polygon | a polygon on which at least one vertex appears to be "pushed inward" |
| square | a rectangle with all sides of equal length and all right angles |
| rhombus | a parallelogram with all sides the same length |
| trapezoid | a quadrangle that has exactly one pair of parallel sides |
| hexagon | a 6 sided polygon |
| perpendicular lines | two lines that intersect to form right angles |
| right angle | an angle exactly 90 degrees making a square corner |
Created by:
jwlmath
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