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32 Cards in this Set
- Front
- Back
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SEGMENT
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part of a line limited by two points
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RAY
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has one endpoint and continues infinitely in one direction
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POINT
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has no measurement, defines one point in space
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LINE
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defined by 2 points, goes infinitely in 2 directions, has no width
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COMPLEMENTARY ANGLES
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sum of their measures is 90 degrees
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SUPPLEMENTARY ANGLES
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sum of their measures is 180 degrees
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ADJACENT ANGLES
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share a common side and vertex
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VERTICAL ANGLES
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formed by 2 intersecting lines and share no common sides. they are congruent (equal measure)
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SUM OF THE THREE ANGLES IN A TRIANGLE
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sum = 180 degrees
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DIAMETER
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line segment with endpoints on a circle that passes through the center of the circle
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RADIUS
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segment from the center to a point on a circle
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CENTRAL ANGLE
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angle formed with the center of a circle as it's vertex
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TRAPEZOID
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quadrilateral with one pair of parallel sides
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PARALLELOGRAM
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quadrilateral with two pairs of parallel sides
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RECTANGLE
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parallelogram with right angles
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RHOMBUS
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parallelogram with equal sides
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TRIANGLE
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three sided polygon
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QUADRILATERAL
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four sided polygon
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ACUTE ANGLE
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angle that measures less than 90 degrees
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OBTUSE ANGLE
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angle that measures more than 90 degrees
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RIGHT ANGLE
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angle that measures exactly 90 degrees
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ISOSCELES TRIANGLE
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triangle with two sides of equal length
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EQUILATERAL TRIANGLE
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triangle with three sides of equal length
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SCALENE TRIANGLE
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triangle with all sides of different lengths
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alternate interior angles
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angles between two lines and on opposite sides of a transversal
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congruent angles
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angles that have the same measure
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congruent figure
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figures that have the same size and shape
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perpendicular lines
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lines that intersect at right angles
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parallel
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lines that lie in the same plane and do not intersect
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plane
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flat surface that has no thickness and extends without end in the directions of all the lines it contains
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skew
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lines in space that do not intersect and are not parallel. They do not lie in the same plane.
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transversal
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a line that intersects two other lines in different points
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