Pearson Geometry Unit i
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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Collinear points | points that lie on the same line.
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Coplanar | points and lines lie in the same plane.
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Intersection | the set of points the figures have in common.
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Line | a straight path that extends in two opposite directions without end and has no thickness; contains infinitely many points.
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Opposite rays | two rays that share the same endpoint and form a line.
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Plane | represented by a flat surface that extends without end and has
no thickness; contains infinitely many lines.
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Point | indicates a location and has no size.
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Postulate | an accepted statement of fact.
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Ray | part of a line that consists of one endpoint and all points of the line on one side of the endpoint.
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Segment | part of a line that consists of two endpoints and all points between them.
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Congruent segments | Two segments that have the same length.
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Coordinate | the real number that corresponds to the location of a point.
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Distance | the absolute value of the difference of two point's coordinates.
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Midpoint | the point that divides a segment into two congruent segments.
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Segment bisector | a point, a line, a ray, or another segment that intersects a segment at its midpoint.
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Acute angle | an angle whose measure is between 0 and 90.
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Angle | formed by two rays with the same endpoint.
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Congruent angles | angles with the same measure.
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Obtuse angle | an angle whose measure is between 90 and 180.
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Right angle – A right angle is | an angle whose measure is 90.
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Straight angle | an angle whose measure is 180.
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Vertex of an angle | the common endpoint of the two rays that form the angle.
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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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