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Math Vocab Finals
Vocab for the finals
14
Mathematics
9th Grade
12/19/2012

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Term
Acute Angle
Definition
An angle with a measure of less than 90°
Term
Acute Triangle
Definition
A triangle with all angles less than 90°
Term
Alternate Interior Angles
Definition
The pairs of angles on opposite sides of the transversal but inside the two lines
Term
Altitude of an Triangle
Definition
A straight line through a vertex and perpendicular to the opposite base
Term
Angle
Definition
A figure formed by by two ray which intersect at the vertex
Term
Angle Bisector
Definition
A line which cuts an angle into two equal halves
Term
Base Angles
Definition
The angle that is formed by the base and one leg in an isosceles triangle
Term
Collinear
Definition
Three or more points on a straight line
Term
Complementary Angles
Definition
Two angles that add to 90°
Term
Consecutive Interior Angles
Definition
The pairs of angles on one side of the transversal but inside the two lines
Term
Converse
Definition
A reversed statement
Term
Counterexample
Definition
an exception to a proposed rule
Term
CPCTC
Definition
Congruent Parts of Congruent Triangles Correspond
Term
Deductive Reasoning
Definition
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