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# Medlen U2-3 Vocab

### Vocab Terms

TermDefinition
Law of Detachment If a conditional is true and its hypothesis is true, then its conclusion is true.
Conditional Another name for an if – then statement
Supplementary Two angles whose measures have a sum of 180
Converse A conditional switches the hypothesis and the conclusion
Hypothesis The part of a conditional following if
Negation A statement that has the opposite truth value
Complementary Two angles whose measures have a sum of 90
Deductive Reasoning The process of reasoning logically from given statements to a conclusion
Adjacent Two angles that share a common side.
Formal Proof A proof that contains statements and reasons organized into two columns is a
Venn Diagram A diagram that uses circles to illustrate conditionals
Inverse Negates both the hypothesis and conclusion of a conditional statement
Law of Syllogism Allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement.
Conclusion The part of a conditional following then
Vertical Angles Two angles formed by intersecting lines
Counterexample An example or instance of the statement that makes the statement false.
Equivalent Statements Statements with the same truth value
Truth Value A conditional is either true or false
Contrapositive Switches and negates both the hypothesis and conclusion of a conditional statement.
Inductive Reasoning Reasoning based on patterns you observe.
Algebraic Proof A proof that is made up of a series of algebraic statements
Transversal A line that intersects two coplanar lines at two distinct points.
Isosceles Triangle A triangle that has at least two sides congruent.
Scalene Triangle A triangle that has no sides congruent.
Alternate Interior Angles Non-adjacent interior angles that lie on opposite sides of a transversal.
Same Side Interior Angles Angles that lie on the same side of a transversal and between two lines.
Corresponding Angles Angles that lie on the same side of a transversal in corresponding positions.
Equiangular Triangle A triangle that has all angles congruent.
Alternate Exterior Angles Non-adjacent exterior angles that lie on opposite sides of a transversal.
Acute Triangle A triangle that has all acute angles.
Point Slope Form What form is the following equation? y-y1=m(x-x1)
Exterior Angle An angle formed by a side and an extension of an adjacent side.
Polygon A closed plane figure with at least three sides that are segments.
Convex Polygon A polygon that has no diagonal with points outside the polygon.
Slope Intercept Form What form is the following equation? y=mx+b
Concave Polygon A polygon with at least one diagonal with points outside the polygon
Equilateral A polygon with all sides congruent.
Right Triangle A triangle that has one right angle.
Obtuse Triangle A triangle that has one obtuse angle.
Equilateral Triangle A triangle that has all sides congruent.
Equangular Polygon A polygon with all congruent angles.
Regular Polygon A polygon with both congruent angles and congruent sides.
Standard Form What form is the following equation? Ax+By=C
Remote Interior Angles For each exterior angle there are two nonadjacent interior angles called these.
Created by: amedlen