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18 Cards in this Set
- Front
- Back
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Angle
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two rays that share a common endpoint
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right angle
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an angle of 90 degrees
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straight angle
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an angle of 180 degrees
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obtuse angle
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an angle greater than 90 degrees but less than 180 degrees
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acute angle
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an angle less than 90 degrees
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vertex
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the endpoint of an angle or the point where the edges of a solid meet
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congruent
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being equal in size or shape
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scalene
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a triangle with no congruent sides
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isosceles
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a triangle with two congruent sides
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equilateral
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a triangle with all three sides congruent
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regular polygon
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a polygon with all sides congruent
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quadrilateral
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a four-sided polygon
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pentagon
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a five-sided polygon
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hexagon
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a six-sided polygon
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octagon
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an eight-sided polygon
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parallel
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lines in a plane that never cross and stay the same distance apart
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perpendicular
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two lines that intersect to form right angles
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adjacent
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angles that are side by side and have a common vertex or ray
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