Math terms flash cards

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