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Math Exam Vocab

TermDefinition
Geometry Measurement of Earth
Euclid Known as the Father of Geometry
Collinear Points that lie on the same line
Polygon A closed plane figure formed by 3 or more line segments
Congruent To have the same shape and size
Angle A figure formed by two rays, or sides, with a common endpoint
Vertex The common endpoint in an angle
Acute Angle An angle that measures greater than 0 degrees and less than 90 degrees
Right Angle An angle that measures exactly 90 degrees
Straight Angle An angle that measures exactly 180 degrees and is formed by two opposite rays
Obtuse Angle An angle that measures greater than 90 degrees and less than 180 degrees
Angle Bisector A ray that divides an angle into two congruent angles
Complementary Angles Two angles whose measures have the sum of 90 degrees
Supplementary Angles Two angles whose measures have the sum of 180 degrees
Perpendicular Lines Lines which intersect at 90 - degree angles
Parallel Lines Two lines that do not intersect and are coplanar
Alternate Interior Angles Two angles that lie between two lines and on opposite sides of the transversal
Alternate Exterior Angles Two angles that lie outside two lines and on opposite sides of the transversal
Parallelogram Has opposite sides that are parallel and equal in length
Quadrilateral A polygon with four sides
Rhombus Has two pairs of parallel sides and all sides are congruent
Trapezoid Has only one pair or parallel sides
Hypothesis The ''if'' part of a conditional statement
Conclusion The ''then'' part of a conditional statement
Theorem A true statement that follows as a result of other true statements
Created by: MaryColbert
 

 



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