Geometry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Acute angle | An angle with a measure greater than 0 degrees and less than 90 degrees.
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| Acute triangle | A triangle that has three acute angles.
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| Adjacent angles | Two angles that have the same vertex, share a common side, and do not overlap.
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| Angle | Two rays with common endpoint form an angle. The rays and vertex are used to name an angle below is <ABC.
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| Arc | A curved line part of a circle. An arc is part of the circumference of a circle.
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| Asymmetry | An irregularity or imbalance in the spatial pattern or shape or arrangement of an object or figure.
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| Center of a circle | A point inside the circle and is at an equal distance from all of the points on its circumference.
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| Center of rotation | A fixed point around which shapes move in a circular motion to a new position.
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| Central angle | An angle whose vertex is the center of a circle and whose side intersect the circle.
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| Chord | A segment with endpoints that are on a circle.
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| Circle | the set of all points in a plane that are the same distance from a given point called the center.
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| Complementary angles | Two angles are complementary if the sum of their measures is 90 degrees
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| Congruent | Line segments that have the same length, or angles that have the same measure, or figures that have the same size and shape.
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| Corresponding angles | Angles that have the same position on two different parallel line cut by a transversal. In figure,<1 and <5, <2 and<6, <7, <4 and <8 are corresponding angle.
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| Diameter | The distance across a circle through its center.
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| Equilateral triangle | A triangle with all sides congruent.
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| Image | Every corresponding point on a figure after its transformation.
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| Isosceles triangle | A triangle that has at least two congruent sides.
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| Line | A never ending straight path.
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| Line of reflection | The line that is reflected over in a reflection.
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| Line of symmetry | Each half of a figure is a mirror image of the other half when a line of symmetry is drawn.
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| Line segment | Part of a line containing two endpoint and all the points between them.
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| Line symmetry |
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| Obtuse angle | An angle with a measure greater than 90 degrees but less than 180 degrees.
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| Obtuse triangle |
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| Parallel lines |
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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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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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