Chapter 20
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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| clockwise | in the same direction in which the hands of a clock move
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| counterclockwise | in the opposite direction in which the hands of a clock move
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| line symmetry | what a figure has if it can be folded on a line so that its two parts match exactly
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| rotational symmetry | what a figure has if it can be turned about a central point and still look the same in at least two positions
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| angle | a figure formed by two line segments or rays that share an endpoint
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| degree (°) | the unit used for measuring angles and temperatures
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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:
RossCoops3
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