Geometry definitions
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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circle | the set of all points in a plane equal distance from a given point
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secant | a segment that intersects a circle in 2 points with a point as an endpoint of a segment
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central angle | an angle whose vertex is the center of the polygon and whose side contains 2 consecutive verticies
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Tangent | line that intersects a circle in exactly 1 point
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point of tangency | a point where the line touches the circle
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radius | distance from the center to a point on the circle
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congruent circles | 2 circles that have same radius
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Major arc | > 180
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Minor arc | < 180
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sector | a region bounded by 2 radius of a circle and intercepted arc
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semicircle | 180
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arc length | circumferance of a circle
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apothom | distance from center of polygon to any side
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diameter | a chord that goes through the center of a circle
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chord | segments whose end points ar on the circle
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area of a rectangle | A= LW
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obtuse triangle | all angles > 90
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acute triangle | all angles < 90
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median | a segment whose end points are a vertex of a triangle and mid points of opposite side
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scale factor | the ratios of the lengths of 2 corresponding sides of 2 polygons
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midsegment theorem | a segment that connects the mid points of the legs of a trapazoid
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proportion |
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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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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:
dml2nc
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