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23 Cards in this Set
- Front
- Back
set
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a collection of objects such that something either belongs to the set or does not
example: 2,4,6,7 |
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point
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a place marked in space with no real dimensions. It only indicates a marked position
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line
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a collection of points that also has no real dimensions that continues infinately in both directions
** a line must be determined by two or more points** |
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plane
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a set of points that for an infinate flat surface
** a plane must be determined by thre or more points** |
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collinear set of points
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a set of points in which all the points lie on the same line
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non collinear set of points
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a set of three or more points that do not share the same line
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line segment
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a set of points on a line that has two distinct end points and contains all the points in between
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line segment bisector
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any line that intersects the segment at its midpoint
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straight angle
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an angle that is the union of opposite rays
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obtuse angle
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an angle whose degree measure is greater than 90 degrees but less than 180
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congruent angles
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angles that have the same measure
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angle bisector
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a ray that divides an angle into two congruent angles
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perpendicular lines
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two lines that intersect to form right angles
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scalene triangle
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a triangle that has no congruent sides
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equiangular triangle
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a triangle that has three congruent angles
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acute triangle
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a triangle that has three acute angles
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isosceles triangle
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a triangle that has two congruent sides
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midpoint
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a point that divides a line segment into two congruent segments
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right angle
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an angle who's degree measure is 90 degrees
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acute angle
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an angle who's degree measure is greater than 0 and less than 90
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equilateral triangle
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a triangle that has three congruent sides
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median
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a line segment that goes from one vertex of the triangle to the midpoint of the triangle on the opposite side
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altitude
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a line segment that goes from the vertex of the triangle perpendicular to the base of the opposite side
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