An unproven statement that is based on observations
What is a Conjecture.
100
a logical statement that has two parts
What is a Conditional Statement
100
Lines that are coplanar and never intersect
What is/are Parallel Lines
100
A triangle with at least 2 congruent sides
What is an isosceles triangle.
100
Segment from a vertex to the midpoint of the opposite side
What is a Median
200
If A, B, and C are collinear and c is between A and B, then ray CA and ray CB are opposite rays
What is an Opposite ray.
200
If p-->q is a true conditional statement and p is true, that is the situation described in the hypothesis occurs, then q is true, that is, the conditional situation also occurs
What is Law of Detachment
200
These non-coplanar lines that do not interact
What is/are Skew Lines
200
Congruent figures have the same_________ and same________
What is size and shape
200
When 3 or more lines, rays, or segments intersect
in the same point
What is/are Concurrent lines,rays, or segments
300
This postulate states that if B is between A and C, then AB+BC=AC.
What is Segment Addition Postulate
300
Using previous examples and patterns to make a conjecture
What is Inductive Reasoning
300
This theorem states that if a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other
What is Theorem 3.7
300
This theorem states that if two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of a second triangle, then the two triangles are congruent.
What is Angle-Angle-Side(AAS) Congruence Theorem
300
This theorem states the medians of a triangle intersect at a point that is two thirds of the distance from each vertex to the midpoint of the opposite side
What is Concurrency of Medians of a Triangle.
400
The endpoint of an angle
What is the Vertex.
400
a=a; AB=AB; angle A= angle A
What is the Reflexive Property of Equality
400
If consecutive interior angles are supplementary. then the lines are parallel. This is called______________
What is Consecutive Interior Angles Converse
400
CPCTC
What is Corresponding Parts of Congruent Triangles are Congruent
400
This theorem states that if a segment is a midsegment of a triangle, then it is parellel to the 3rd side and 1/2 its length
What is Midsegment Theorem.
500
The point that divides a segment into two congruent segments.
What is a Midpoint
500
a logical argument that shows a statement is true
What is a Proof
500
Rise over Run
What is Slope
500
This theorem states that is a triangle is equilateral, then it is equiangular.
What is Corollary to the Base Angle Theorem
500
The short side and smallest angle are ________ from each other