An example for which the the conjecture is incorrect.
What is a Counterexample.
100
An if-then statement.
What is a Conditional.
100
A line that intersects two coplaner lines at two distinct points.
What is a Transversal.
100
Congruent Corresponding parts match--their matching sides and angles.
What is Congruent Polygons.
100
A parallelogram with four congruent sides and four right angles.
What is a Square.
200
A flat surface that has no thickness.
What is a Plane.
200
When a conditional and its converse are true, you can combine them.
What is True Biconditional.
200
Arrows show the logical connections between the statements.
What is a Flow Proof.
200
Corresponding parts of congruent triangles are congruent.
What is CPCTC.
200
A parallelogram with four congruent sides.
What is a Rhombus.
300
The part of a line consisting of one endpoint and all the points of the line on one side of the endpoint.
What is a Ray.
300
This law allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement.
What is the Law Of Syllogism.
300
At least two sides congruent.
What is Isosceles.
300
Congurent sides of an isosclese triangle.
What is Legs.
300
Angles that share a side.
What is Consecutive Angles.
400
90< x < 180
What is an Obtuse Angle.
400
If a =b and b = c, then a = c.
What is Transitive Property.
400
For each exterior angle of a triangle,the two nonadjacent interior angles.
What is Remote Interior Angles.
400
A statement that follows immediately from a theorem.
What is Corollary.
400
Two angles that share a base of a trapezoid.
What is Base Angles.
500
Two lines that intersect to form right angles.
What is Perpendicular Lines.
500
Two coplaner angles with a common side, a common vertex, and no common interior points.
What is Adjacent Angles.
500
Has at least one diagonal with points outside the polygon.
What is a Concave Polygon.
500
In a right triangle, the side opposite the right angle is the longest side.
What is a Hypotenuse.
500
The segment that joins the midpioints of the nonparallel opposite sides.