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28 Cards in this Set
- Front
- Back
A polygon with 5 sides |
Pentagon |
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Angles whose sum is 180 degrees are |
Supplementary |
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Has no congruent sides |
Scalene triangle |
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Measures less than 90 degrees |
Acute angle |
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Do not lie in the same plane and are neither parallel |
Skew lines |
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Are formed by two intersecting lines and are the opposite each other |
Vertical angles |
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Has at least two congruent sides |
Isosceles triangle |
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Polygon with all sides and all angles congruent |
Regular polygon |
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Quadrilateral with both pairs of opposite sides parallel |
Parallelogram |
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Is a part of a circle |
Arc |
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Quadrilateral with exactly one pair of parallel sides |
Trapezoid |
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Is a quadrilateral that is a parallelogram with four congruent sides |
Rhombus |
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Angle with its vertex at the center of a circle |
Central angle |
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Segment with both endpoints on a circle |
Chord |
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Set of points in a plane that are all the same distance from a given point |
Circle |
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Sum of the measures of two angles is 90 degrees |
Complementary |
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Means equal |
Congruent |
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Ten sided polygon |
Decagon |
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Center of a circle |
Diameter |
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Parallelogram with four right angles |
Rectangle |
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Series of points that extend in the opposite directions without end |
Line |
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Has all 3 sides the same length |
Equilateral triangle |
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Is a polygon with six sides |
Hexagon |
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Segment that connects the center of a circle to the circle |
Radius |
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Flat surface that extends indefinitely in all directions and has no thickness |
Plane |
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Lines that are in the same plane that never intersect |
Parallel lines |
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Share a vertex and a side but have no interior sides in common |
Adjacent angles |
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Measures between 90 degrees and 180 degrees |
Obtuse |