Geometric Constructions
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 | A figure formed by two line segments or rays with a common endpoint.
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| vertex | A common endpoint of two or more line segments or rays.
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| right angle | An angle that measures exactly 90 degrees.
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| acute angle | An angle that measures greater than zero degrees and less than 90 degrees.
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| obtuse angle | An angle that measures greater than 90 degrees but less than 180 degrees.
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| straight angle | An angle that measures exactly 180 degrees.
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| degree | The measurement of an angle.
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| complementary angles | Two angles whose measures have the sum of 90°
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| supplementary angles | Two angles whose measures have the sum of 180°.
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| adjacent angles | Angles that have a common vertex and a common side, but no common interior points.
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| parallel lines | Lines in the same plane that never intersect and remain the same distance apart from each other.
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| intersecting lines | Lines that have one or more points in common.
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| perpendicular lines | Two lines that meet at a point and form right angles (90°) to each other.
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| vertical angles | The opposite angles formed by two intersecting lines. Vertical angles have the same measure and therefore are congruent.
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| plane | A flat, two-dimensional surface.
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| transversal | A line that intersects two or more lines.
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| triangle | A polygon with three sides and three angles.
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| triangulating | Dividing a polygon into triangles without introducing any new vertices.
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| construct | To form by assembling or combining parts; build.
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| side length | The measure of a line segment forming part of the perimeter of a plane geometric figure.
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| protractor | An instrument used to measure 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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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:
Mrs Ott
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