Geometry 8.1
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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| Endpoints | 2 points on any line
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| Ray | the subset of a line that contains a specific point (the endpoint) and all the points on the line that are on the same side of that point
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| Intersect | wherever 2 lines meet or where 2 lines have a point in common
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| Perpendicular | where 2 intersecting lines form right angles
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| Concurrent | where 3 or more lines intersect at a single point
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| Parallel | where 2 lines lie in the same plane and never intersect
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| Complementary Angles | the sum of the measure of 2 angles equals 90 degrees
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| Supplementary Angles | the sum of the measure of 2 angles equals 180 degrees
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| Hand-Eye Coordination | One aspect of spatial thinking. The ability of the vision system to coordinate the information received through the eyes to control, guide, and direct the hands in the accomplishment of a given task.
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| Figure-Ground Perception | The ability to identify a figure against a complex background.
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| Perceptual Constancy | The ability to recognize figures and objects when they are not in their familiar orientation.
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| Visual Discrimination | The ability to find similarities and differences between or among objects.
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| Visual Memory | Deals with the person's ability to describe or draw accurately, an object that is no longer in view.
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| Point | Geometrically, has no dimension (length or width), but it does have a location.
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| Right Angle | An angle whose measurement is 90 degrees.
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| Acute Angle | An angle whose measure is less than 90 degrees.
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| Obtuse Angle | An angle whose measure is greater than 90 degrees but less than 180 degrees.
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| Line | straight and extends infinitely in two directions
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| Plane | A flat surface that extends infinitely in all directions.
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| Collinear Points | Points that lie on the same line. Any two points are collinear.
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| Noncollinear Points | three (or more) points that do not lie on a single line
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| Coplanar Points | two or more points that lie on a single line
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| Line Segment | A subset of a line that contains two points of the line and all points in between those points.
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| Straight | An angle whose measure is 180 degrees.
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| Reflex | An angle whose measure is greater than 180 degrees but less than 360 degrees.
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| Skew | Two lines that do not intersect because they do not lie in the same plane.
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| Angle | The union of two rays that have a common endpoint
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| Vertex | The common endpoint of two rays.
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| Side | Each of the rays of the angle
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| Interior | The angle formed inside of a shape
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| Exterior |
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| Vertical angles | When two lines intersect, four angles are formed. The angle that are opposite of each other are vertical 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.
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:
math1420
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