Angles and Polygons; Terms
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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| Point | Exact position or location on a plane or line
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| Line | No beginning or end point
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| Ray | Straight line that begins at a certain point and extends forever in one direction
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| Line Segment | A part of a straight line that does not extend forever but has two distinct endpoints
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| Right angle | Exactly 90 degrees
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| Acute angle | Less than 90 degrees
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| Obtuse angle | Between 90 and 180 degrees
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| Straight angle | Exactly 180 degrees
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| Vertical angles | Opposite angles formed by the intersection of two lines
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| Congruent angles | Angles with the same measure
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| Complementary angles | Sum of angles is 90 degrees
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| Supplementary angles | Sum of angles is 180 degrees
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| Acute triangle | A triangle that has all acute angles
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| Right triangle | A triangle that has one right angle
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| Obtuse triangle | A triangle that has one obtuse angle
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| Scalene triangle | A triangle with no congruent sides
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| Isosceles triangle | A triangle with at least 2 congruent sides
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| Equilateral triangle | A triangle with all sides congruent
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| Quadrilateral | A figure with four sides and four angles
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| Similar figures | Figures that have the same shape but not the same size
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| Congruent figures | Figures that have the same size and shape
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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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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.
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:
mallison
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