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Geometry
Geometry Vocab
| Term | Definition |
|---|---|
| polygon | a closed figure made up of line segments that do not cross each other |
| regular polygon | a polygon with congruent sides and congruent angles |
| congruent sides | sides that are equal in length |
| congruent angles | angles that have the same degree measure |
| triangle | a polygon with three sides and three angles |
| quadrilateral | a polygon with four sides and four angles |
| pentagon | a polygon with five sides and five angles |
| hexagon | a polygon with six sides and six angles |
| octagon | a polygon with eight sides and eight angles |
| attribute | a characteristic of a figure like side measures and angle measures |
| isosceles triangle | a triangle with at least two congruent sides |
| equilateral triangle | a triangle with all sides congruent |
| scalene triangle | a triangle with no congruent sides |
| acute triangle | a triangle with three acute angles |
| right triangle | a triangle with one right angle and two acute angles |
| obtuse triangle | a triangle with one obtuse angle and two acute angles |
| trapezoid | a quadrilateral with exactly one pair of opposite sides that are parallel |
| rectangle | a parallelogram with four right angles |
| parallelogram | a quadrilateral with opposite sides congruent and parallel |
| square | a parallelogram with four congruent sides and four right angles |
| rhombus | a parallelogram with four congruent sides |
| three-dimensional figure | a figure with length, width, and height |
| net | a two-dimensional pattern of a three-dimensional figure |
| cube | a three-dimensional figure with six faces that are congruent squares, has twelve edges and eight vertices, also called a square prism |
| congruent figures | figures that have the same size and shape |
| rectangular prism | a three-dimensional figure with six rectangular faces and opposite faces that are parallel and congruent |
| face | a flat surface |
| edge | where two faces meet |
| vertex | a point where three or more faces meet |
| prism | a three-dimensional figure that has at least three faces that are rectangles |
| bases | the top and bottom faces |
| rectangular prism | a prism with bases that are congruent rectangles, has six rectangular faces, twelve edges, and eight vertices |
| triangular prism | a prism with triangular bases, has five faces, nine edges, and six vertices |
| volume | the amount of space inside a three-dimensional figure |
| composite figure | made up of two or more three-dimensional figures |
Created by:
Jerman
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