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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| Line | a straight path of points that goes on in 2 direction
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| Ray | part of a line. I has only one endpoint and extends forever in one direction
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| parallel lines | never cross and stay the same distance apart
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| perpendicular lines | are intersecting lines that form square corners
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| point | an exact location in a space
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| line segment | part of a line and has 2 endpoints
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| plane | an endless flat surface
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| angle | formed by two rays that have the same endpoint.
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| acute angle | has a measure between 0˚ and 90˚
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| right angle | has a measure of 90˚
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| obtuse angle | Has a measure between 90˚ and 18˚
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| straight angle | Has a measure of 180˚
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| vertex | common endpoint
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| protractor | to measure and draw angles
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| degrees | What angles are measured in
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| polygon | closed plane figure made up of line segments
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| regular polygon | sides of equal length and angles of equal measure
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| triangle | 3 sides ∆
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| quadrilateral | 4 sides
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| pentagon | 5 sides
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| hexagon | 6 sides
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| octagon | 8 sides
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| equilateral triangle | all sides are the same length
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| isosceles triangle | Two sides are the same length
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| scalene triangle | No sides are the same length
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| right triangle | One angle is a right angle
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| acute triangle | All three angles are acute angles
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| obtuse triangle | one angle is an obtuse angle
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| parallelogram | both pairs of opposite sides parallel and equal in length
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| trapezoid | only one pair of parallel sides
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| rectangle | a parallelogram with four right angles
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| rhombus | a parallelogram with all sides the same length
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| square | a rectangle with all ides the same length
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| generalization | general statement
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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:
17thinto
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