Chapter 1 Geometry Vocabulary
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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| vertex | point where two angle's sides meet
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| plane | a two dimension that extends in four directions; it can be defined with three non-collinear points
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| transformation | the operation, or set of instructions, that maps a figure onto an image
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| collinear points | points on the same line
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| angle | two rays that share the same endpoint
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| ray | a part of a line that has a beginning but no end
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| acute angle | an angle that has a measure between 0 and 90 degrees
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| endpoint | the point where a ray begins
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| intersection | the point or points that two figures have in common
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| translation | a slide that preserves both size and shape
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| coplanar points | points on the same plane
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| undefined terms | mathematical terms that cannot be defined mathematically defined using other known words
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| obtuse angle | an angle that has a measure between 90 and 180 degrees
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| rotation | a transformation in which a figure is turned about a fixed point
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| line | a figure named by two points that extends forever in 2 directions
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| congruent segments | segments that have exactly the same length
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| image | the new figure after the transformation has taken place
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| reflection | a transformation in which a figure is flipped about a given line or axis
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| coordinate | the x or y component of a point
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| degrees | the units that a protractor measures an angle
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| segment | a part of a line that has both a beginning and an end
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| coplanar lines | lines that are on the same plane
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| right angle | an angle whose measure is exactly 90 degrees
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| straight angle | an angle whose measure is exactly 180 degrees
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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.
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.
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:
HowardGeometry
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