Chapter 8 Transformations
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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| angle of rotation | the angle through which a point is rotated under a rotation
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| center of dilation | the point about which a figure is dilated under a dilation
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| center of rotation | the point about which a point is rotated under a rotation
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| clockwise | in the direction that a clock hand moves
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| counterclockwise | in the opposite direction that a clock hand moves
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| dilation | a transformation that assigns to each point A on the plane a point A' such that from a given point O, OA = kOA' and A, O, and A' lie along the same line
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| half turn | a 180 degree rotation
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| image | the resulting figure after a transformation
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| invariant point | a point that remains unchanged, or a point that is mapped onto itself, under a transformation
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| isometry | a transformation that preserves lengths and angle measures
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| line of reflection | the given line of a reflection that is the perpendicular bisector of all segments formed by a point and its image
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| map | to assign to each point on a plane its image under a transformation
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| reflection | a transformation that maps each point A on a plane to a point A' such that a given line is the perpendicular bisector of line segment AA'.
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| rotation | a transformation that maps each point A on a plane to a point A' such that, given a center O, m of angle AOA' is a given angle measure and AO = A'O
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| scale factor | the ratio of a length A'B' of a figure's image to the length AB of the original figure under a dilation
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| transformation | a function that maps each point to its corresponding point on the plane
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| translation | a transformation that maps each point A on a plane to a point A' such that line segment AA' is the same length and has the same direction for all points on the plane
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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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Created by:
cazenger
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