Geometry Basic 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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| the place in space that is usually represented by a dot | point
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| a straight path that goes on forever in both directions | line
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| part of a line that can be measured and has two endpoints | line segment
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| part of a line having only one endpoint | ray
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| two rays having the same endpoint | angle
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| the point that two rays of an angle have in common | vertex (vertices)
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| a point at the end of a ray | endpoint
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| endless | infinite
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| two lines/rays that never cross | parallel
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| two lines/rays that cross | intersect
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| two lines/rays that form a PERFECT corner | perpendicular
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| less than a right angle or 90 degrees | acute angle
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| greater that a right angle or 90 degrees | obtuse angle
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| a perfect corner or 90 degrees | right angle
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| a straight line or 180 degrees | straight angle
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| a three sided polygon | triangle
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| triangle with no sides the same length | scalene
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| triangle with 2 sides the same length | isosceles
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| triange with 3 sides the same length | equilateral
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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:
denabrown
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