vocabulary to know
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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| acute angle | an angle that measures less than a right angle; an angle that has a measure of less than 90 degrees
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| line | a straight path that continues without ending in both directions; think Buzz Light Year "To infinity and beyond!"
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| line of symmetry | an imaginary line that divides a shape into 2 matching parts
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| obtuse angle | an angle that measures greater than a right angle; an angle that has a measure of more than 90 degrees
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| ray | a part of a line that is straight and has one end point and continues without ending in one direction
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| right angle | an angle that forms a square corner and has a measure of 90 degrees
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| line segment | a part of a line that is straight and has 2 end points
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| angle | a figure formed by 2 rays or 2 line segments and has a common endpoint called the vertex
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| perpendicular lines | two lines that intersect to form a right angle
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| parallel lines | lines that never meet
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| intersecting lines | lines that meet or touch or cross
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| straight angle | forms a straight line; measures 180 degrees
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| polygon | closed flat shape with straight sides
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| vertex | point where 2 sides of a polygon meet
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| triangle | polygon with 3 sides
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| quadrilateral | polygon with 4 sides
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| pentagon | polygon with 5 sides
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| hexagon | polygon with 6 sides
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| octagon | polygon with 8 sides
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| equilateral triangle | triangle with all sides the same length
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| isosceles triangle | triangle with 2 sides same length and 1 side a different length; think SOS - same-odd man out-same
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| scalene triangle | triangle with no sides the same length
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| right triangle | triangle with 1 right angle
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| acute triangle | triangle with 3 acute angles (less than 90 degrees)
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| obtuse triangle | triangle with 1 obtuse angle (greater than 90 degrees
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| rhombus | figure with opposite sides parallel and all sides the same length
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| trapezoid | a figure with only 1 pair of parallel sides
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| parallelogram | a figure with 2 pairs of opposite parallel sides
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| rectangle | a figure with 4 right angles and opposite parallel sides
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| square | a figure with 4 right angles and 4 sides that are the same length
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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:
pdeprosse
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