Geometry Ch 9 Vocab
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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Dilation | a transformation that enlarges or reduces the pre-image proportionally
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Image | the resulting figure after the transformation
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Isometry | a transformation where the pre-image and image are congruent
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Pre-Image | the original figure to be transformed
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Reflection | a transformation that flips a figure over a line
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Rotation | turning a figure around a point with a specific angle and in a specific direction
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Transformation | an operation that maps an original geometric figure onto a new figure
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Translation | a transformation that slides all points of a figure the same distance in the same direction
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Symmetry | when a figure can be mapped onto itself using an isometry
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Vector | a segment representing a quantity that has both magnitude and direction
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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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