Vocabulary
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| Equilateral Triangle | A triangle with all sides equal, and all angles equal (they are 60 degrees),
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| Compass | A geometric tool that has two arms, one sharp and the another with a pencil that can be used to draw circles or arcs.
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| Segment | The distance between two points (part of a line).
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| Arc | Part of any curve or part of the circumference of a circle.
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| Congruent | In geometry, two figures are congruent if they have the same size and shape.
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| Perpendicular Lines | Lines that intersect and form right angles.
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| Straightedge | A geometric tool used to draw straight lines.
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| Radius | A segment from the center of a circle to a point on the circle.
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| Circle | A A shape consisting of all points in a plane that are a given distance from a given point.
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| Geometric Construction | A set of instructions for drawing points, lines, circles, and figures in a plane.
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| Figure | A set of points in a plane.
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| Collinear | Three or more points contained in a line
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| Noncollinear | Three or more points not contained in a line
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| Ray | Part of a line that has an endpoint (start point) but no end point.
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| vertex | A point where two or more segments or rays meet.
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| Angle | The union of two noncollinear rays with the same endpoint.
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| Angle Bisector | A line or segment that divides an angle into two equal parts.
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| Midpoint | A point that is exactly between two endpoints on a segment.
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| Degree | A unit of measurement of angles.
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| Straight Angle | Is a line that measures 180 degrees.
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| Perpendicular Bisector | A line segment that is perpendicular to and passes through the midpoint of another line or segment.
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| Point of Concurrency | A point where three or more lines intersect in one place.
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| Circumcenter of a Triangle | A point where the "perpendicular bisectors" (lines that are at right angles to the midpoint of each side) meet.
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| Incenter of a Triangle | It is where the "angle bisectors" (lines that split each corner's angle in half) meet.
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| Orthocenter of a Triangle | The point where the three "altitudes" of a triangle meet. An "altitude" is a line that goes through a vertex (corner point) and is at right angles to the opposite side.
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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:
mberish
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