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Geometry Vocabulary
Vocabulary for Unit 5: Geometry (Grade 6)
| Term | Definition |
|---|---|
| Area | The size of a flat surface calculated by measuring the length and width. |
| Parallelogram | A quadrilateral with opposite sides parallel and opposite sides congruent. |
| Quadrilateral | A closed figure having four sides and four angles. |
| Triangle | A figure with three sides and three angles. |
| Trapezoid | A quadrilateral with one pair of parallel lines. |
| Parallel | Lines in a plan that never intersect. |
| Composite Figure | A figure made of triangles, quadrilaterals, semicircles, and other two-dimensional figures. |
| Face | A flat surface. |
| Edge | The outer or furthest point of something. |
| Vertex | The point where three or more faces intersect. |
| Volume | The amount of space inside a three-dimensional figure. Volume is measured in cubic units. V + lwh |
| Surface Area | The sum of the area of all the surfaces (faces) of a three-dimensional figure. SA= 2lh + 2lw + 2hw |
| Net | A two-dimensional figure that can be used to build a three-dimensional figure. |
| Polygon | A simple closed figure formed by three or more straight line segments. |
| Coordinate Plane | A plane in which a horizontal number line and a vertical number line intersect at their zero points. |
| Ordered Pair | A pair of numbers used to locate a point on the coordinate plane. The ordered pair is written in the form (x,y) |
Created by:
Mr.Hutchens