Theorems and Postulates
Theorems and Triangles
Geometry Terms
Angles
Truths
100
States that if a transversal intersects two parallel lines the the same side interiors are supplementary
What is the same side interior angles theorem
100
All vertices angles are congruent
What is the vertical angle theorem
100
Part of a line containing one end point and all the points on one side of the end point
What is a ray
100
Formed by two rays with the same end point
What is an angle
100
Opposite truth
What is negation
200
States that if 2 angles of one triangle are congruent to toe triangle of another triangle then the third angles are congruent
What is the third angle theorem
200
If a=b and b=c then a=c
What is the transitive property
200
A boundless, three dimensional set of all points
What is space
200
Angles that add up to 180 degrees
What are supplementary angles
200
Switches the hypothesis and the conclusion
What is converse
300
States that if three sides of one triangle are congruent to three sides of another triangle, then the two triangles are congruent
What is the side, side, side postulate
300
Two angles whose sides form two pairs of opposite rays
What is vertical angles
300
An exact location with no size that has no dimensions and is named by a capital letter
What is a point
300
Angles on exterior and opposite sides of transversal
What are alternate exterior angles
300
Negation both the hypothesis and conclusion
What is inverse
400
States that if two lines and a transversal form corresponding angles that are congruent, then the lines are parallel
What is the converse of corresponding angles postulate
400
A triangle with two congruent sides
What is an isosceles triangle
400
Coplanar lines that do not intersect
What is parallel lines
400
An angle that measures less than 90 degrees
What is an acute angle
400
The conditional and converse must be true
What is biconditional
500
If two lines and a transversal form alternate interior angles that are congruent, then the lines are parallel
What is the converse of the alternate interior angles theorem
500
What does CPCTC stand for
What is Corresponding Parts of Congruent Triangles are Congruent
500
A conclusion reached by using inductive reasoning
What is a conjecture
500
An angle that measures 90 degrees
What is a right angle
500
The converse and negation of a conditional statement
What is contrapositive
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