Lines, Angles, and Reflections
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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| reflection | a flip of a geometric figure
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| rotation | a turn of a geometric figure
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| reflective symmetry | the property of a figure that can be folded along a line so that the two halves match exactly
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| rotational symmetry | the property of a figure that can be turned less than 360 degrees and be identical with itself.
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| acute angle | an angle that has a measure less than 90 degrees
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| right angle | an angle that has a 90 measure
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| obtuse angle | an angle that has a measure more than 90 degrees and less than 180 degrees
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| perpendicular lines | lines that intersect to form a right angle
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| line of symmetry | a line that divides a figure into two mirror images
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| straight angle | an angle whose measure is 180 degrees
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| parallel lines | two or more lines that are always the same distance apart and never intersect no matter how far they are extended
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| zero angle | an angle whose measure is zero degrees
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| degree | a unit for measuring the size of angles
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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:
MrsLaFayette
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