Math terms flash cards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| the opening that is formed when two rays intersect | angle
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| lines in the same plane that aren't parallel or perpedicular | oblique lines
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| having the same size and shape | congruent
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| triangle whose angle is more than 90 degrees | obtuse
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| where two points meet | vertex
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| a line segment that is part of polygon | side
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| a triangle where all three sides of it have the same length | equilateral
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| where two lines share a point or points | intersect
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| triangle with three sides of different length | scalene
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| two ines that intersect at right angles | perpendicular
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| a flat surface that has no boundaries | plane
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| any four-sided polygon | quadrilateral
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| a triangle whose angle measures 90 degrees | right triangle
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| having the same shape but not necessarily having the same size | similar
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| to express a calculation or measure to a specific degree or accuracy | round
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| a closed flat shape with straight sides | polygon
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| any four-sided polygon | quadrilateral
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| lines that stay the same distance apart | parallel
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| difference between starting time and ending time | elapsed time
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| a number that has not been rounded | exact number
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| to share a point or points | intersect
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| lines that cross | intersecting lines
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| lines in the same plane that are neither parallel nor perpendicular | oblique lines
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| lines that stay in the same distance apart; lines that do not cross | parallel lines
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| two lines that intersect at right angles | perpendicular lines
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| an angle whose measure is more than 0 degress and less than 90 degrees | acute angle
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| the opening that is formed when two lines, line segments, or rays intersect | angle
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| having the same size and shape | congruent
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| an angle whose measure is more than 90 degrees and less than 180 degrees | obtuse angle
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| a flat surface that has no boundaries | plane
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| a closed, flat shape with straight sides | polygon
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| any four-sided polygon | quadrilateral
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| and angle that forms a square corner and measures 90 degrees; it is often marked with a small square | right angle
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| a line segment that is part of a polygon | side
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| having the same shape but not necessarily the same size; these kinds of figures are proportional | similar
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| an angle that measures 180 degress and thus forms a straight line | straight angle
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| a point of an angle, polygon, or solide where two or more lines or line segments meet | vertex
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| plural of "vertex" | vertices
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| a number that has not been rounded | exact
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| to express a calculation or measure to a specific degree or accuracy | round
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| a whole number that ends with one or more zeros | round number
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| the difference between the starting time and ending time | elapsed time
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| a triangle whose largest angle measures less than 90 degrees | acute triangle
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| a triangle in which all sides are the same length | equilateral triangle
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| a triangle with at least two sides of equal length | isosceles triangle
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| a triangle whose largest angle measures more than 90 degrees and less than 180 degrees | obtuse triangle
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| a triangle whose largest angle measures 90 degrees | right triangle
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| a triangle with three sides of different lengths | scalene triangle
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| Mom loves doing this... | ...sleeping!
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Created by:
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