Geometry Vocabulary
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| triangle | a polygon with 3 sides
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| acute triangle | 3 sided polygon with all acute angles
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| right triangle | A triangle with one right angle
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| right angle | perfect 90 degrees (corner)
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| equilateral triangle | all equal sides, 3 sided polygon
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| isosceles triangle | triangle with 2 equal sides
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| scalene triangle | a triangle with no equal sides
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| plane figure | a 2D flat shape
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| polygon | A figure with all straight sides, no openings, no intersections
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| Quadrilateral | any 4 sided polygon
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| Pentagon | Any 5 sided polygon
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| Hexagon | Any 6 sided polygon
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| Parallel | two lines that will never meet if extended in both directions
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| Perpendicular | two lines that intersect to make a right angle
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| 2 pairs of parallel sides | Two SETS of parallel sides
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| Isosceles trapezoid | a trapezoid with 2 equal sides
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| Parallelogram | A quadrilateral with two pairs parallel sides
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| Congruent | Equivalent
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| Rectangle | A quadrilateral with all right angles
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| Square | A quadrilateral with all right angles and congruent sides
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| Rhombus | A quadrilateral with congruent sides
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| Line of symmetry | Imaginary line where you could fold the figure and have both sides match up
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| Diagonal | Sides in a figure that are opposite of one another
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| Classification | To group something according to attributes or characteristics
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| Figure | A shape (2D or 3D)
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| Diagram | A picture/chart
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| Kite | A quadrilateral with two pairs of adjacent sides that are congruent
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| Adjacent | Sides that are next to one another (share a vertex)
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| Vertex | Where two sides meet (a corner)
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| Vertices | The plural form of vertex
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| Properties | special characteristics
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| Attributes | Special characteristics or properties
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| Category (Categories) | Specific group
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| Subcategory (subcategories) | Specific groups within a group
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| angles | the spaces, measured in degrees, between two lines connected at a vertex.
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| Regular Polygon | All sides and angles are congruent
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
rothl
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