Key Terms 1
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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| obtuse angle | an angle whose measure is greater than 90 degrees and less than 180 degrees
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| acute angle | an angle that has a measure less than 90 degrees
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| straight angle | an angle that measures 180 degrees
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| chord | a line segment with endpoints on a circle
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| degree | a unit for measuring angles or for measuring temperature
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| diagonal | slanting from one corner of a four sided figure, as a square, to another corner
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| scalene triangle | a triangle with no congruent sides
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| isosceles triangle | a triangle with exactly two congruent sides
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| equilateral triangle | a triangle with three congruent sides
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| congruent | having the same size and shape
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| similar | having the same shape, but not necessarily the same size
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| parallel | lines in a plane that do not intersect
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| perpendicular | two lines that intersect to form right angles
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| circumference | the distance around a circle
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| diameter | a line segment that passes through the center of a circle and has its endpoints on the circle
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| radius | a line segment with one endpoint at the center of a circle and the other endpoint on the circle
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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:
Central 5th Math
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