Tools 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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| net | Two-dimensional diagram that you can fold to form a three-dimensional figure
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| isometric drawing | drawing that shows the corner view of a three-dimensional figure
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| orthographic drawing | another way to represent a three-dimensional figure
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| point | indicates a location and has no size
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| line | a straight path that extends in two opposite directions without an end and has no thickness
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| plane | flat surface that extends without an end and has no thickness
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| collinear points | points that lie on the same line
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| coplanar | points and lines that lie in the same plane
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| ray | part of a line that only has one endpoint
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| opposite rays | two rays that share the same endpoint and form a line
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| space | set of all points in a three-dimensional figure
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| segment | part of a line that has two endpoints
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| postulate | accepted statement of fact
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| axiom | accepted statement of fact
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| segment bisector | the point, line, or segment that bisects another line or segment
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| vertex of an angle | endpoint of an angle
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| measure of an angle | Consider ray OD and point C on one side of ray OD. Every ray of the form ray OC can be paired one to one with a real number from 0 to 180. The measure of angle COD is the absolute value of the difference of the real numbers paired with ray OC and ray OD
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| congruent angles | angles that are equal
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| acute angles | angle that is less than 90 degrees
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| right angles | angle that equals 90 degrees
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| obtuse angles | angle that is more than 90 degrees
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| straight angles | angle that is equal to 180 degrees
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| vertical angles | two angles whose sides are opposite rays
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| supplementary angles | two angles that have the sum of 180 degrees
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| complementary angles | two angles that have the sum of 90 degrees
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| adjacent angles | two coplanar angles with a common side or vertex and no common interior points
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| linear pair | pair of adjacent angles whose noncommon sides are opposite rays
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| angle bisector | line or segment that divides an angle in half
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| construction | geometric figure drawn using a straightedge or compass
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| perpendicular lines | two lines that intersect forming right angles
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| perpendicular bisector | line, segment, or ray that is perpendicular to the segment at its midpoint
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| congruent segments | segments that are the same length
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| intersection | set of points the figure has in common
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| coordinate | the number that corresponds to a point
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| distance | area between two points
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| midpoint | the center of a point, line, or any other segment
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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:
mbuening
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