Basics of Geometry
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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| A single location in space with no length, width, or height (zero dimensional). | Point
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| A collection of connected points that has no thickness and extends forever in two opposite directions. | Line
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| A collection of points along a line that has a starting point and extends forever in only one direction. | Ray
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| A collection of points along a line that has a starting point and an ending point. | Line Segment
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| A geometric object formed by two rays with a shared starting point. | Angle
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| A point where two lines or rays meet. | Vertex
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| An angle that measures exactly 90 degrees. | Right Angle
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| An angle that measures between 0 and 90 degrees. | Acute Angle
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| Measures between 90 and 180 degrees. | Obtuse Angle
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| Measures exactly 180 degrees. | Straight Angle
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| Angle measures add to 360 degrees. | Angles around a point.
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| Share a common ray. (“Side by side” or “next to”). | Adjacent Angles
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| Two angles whose measures add to 90 degrees. | Complementary Angles
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| Two angles whose measures add to 180 degrees. | Supplementary Angles
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| Opposite angles formed by intersecting lines. These angles have equal measurements. | Vertical Angles
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| Bisects a segment into two congruent segments. | Midpoint
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| A line, ray, or segment that passes through the midpoint of a segment forming right angles. | Perpendicular Bisector
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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:
ctaborsk
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