# Study sets matching "exam 3 chapter 2 geometry"

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Parallel Lines

|| (symbol)

Skew Lines

parallel planes

Coplanar lines that do not intersect.

means is parallel to

noncoplanar lines that are not parallel and do not intersect

planes that do not intersect

Parallel Lines

Coplanar lines that do not intersect.

|| (symbol)

means is parallel to

Congruent Polygons

Third Angles Theorem

Side-Side-Side (SSS) Postulate

Side-Angle-Side (SAS) Postulate

Have corresponding parts congruent.

If 2 angles of 1 triangle are congruent to 2 angles of another…

If the 3 sides of 1 triangle are congruent to the 3 sides of a…

If 2 sides and the included angle of 1 triangle are congruent…

Congruent Polygons

Have corresponding parts congruent.

Third Angles Theorem

If 2 angles of 1 triangle are congruent to 2 angles of another…

inductive reasoning

conjecture

deductive reasoning

function rule

Reasoning from specific observations to make generalizations.…

A conclusion based on guesswork or insufficient evidence.

Reasoning from a general case that is known to be true to a sp…

An expression that describes the relationship between each inp…

inductive reasoning

Reasoning from specific observations to make generalizations.…

conjecture

A conclusion based on guesswork or insufficient evidence.

conjecture

converse

counterexample

deductive reasoning

an educated guess about what will always be true

a statement formed by interchanging the hypothesis and conclus…

a false example that shows a conjecture is not always true

using rules of logic to reach a conclusion

conjecture

an educated guess about what will always be true

converse

a statement formed by interchanging the hypothesis and conclus…

Inductive Reasoning

Conjecture

Counterexample

Conditional Statement

It is used to draw a conclusion based on a pattern.

A statement that is believed to be true.

It is an example that proves a conjecture or statement is fals…

A statement written in if then form with a hypothesis and conc…

Inductive Reasoning

It is used to draw a conclusion based on a pattern.

Conjecture

A statement that is believed to be true.

Biconditional statement

Conditional statement

Conjecture

Contrapositive

a single statement that combines a conditional statement and i…

and If-then statement. ... p->q

a conclusion you make based on inductive reasoning

the negation and converse... ~q->~p

Biconditional statement

a single statement that combines a conditional statement and i…

Conditional statement

and If-then statement. ... p->q

Inductive Reasoning

Deductive Reasoning

Hypothesis

Conclusion

Find a pattern in specific cases and then write a conjecture f…

Reasoning that uses facts, definitions, accepted properties, a…

The "if" part of a conditional statement.

The "then" part of a conditional statement.

Inductive Reasoning

Find a pattern in specific cases and then write a conjecture f…

Deductive Reasoning

Reasoning that uses facts, definitions, accepted properties, a…

algebraic proof

axiom

compound statement

conclusion

a method to prove statements using properties that justify eac…

any mathematical statement that serves as a starting point fro…

two statements put together and formed into a sentence... example…

The "q or then" in a conditional statement

algebraic proof

a method to prove statements using properties that justify eac…

axiom

any mathematical statement that serves as a starting point fro…

Venn diagram

locus

inductive reasoning

conjecture

A concept map of overlapping circles or ovals that shows the r…

The set of all points that satisfy some given conditions.

The process of observing data, recognizing patterns, and makin…

A generalization resulting from inductive reasoning.

Venn diagram

A concept map of overlapping circles or ovals that shows the r…

locus

The set of all points that satisfy some given conditions.

counterexample

postulate

adjacent angles

complementary angles

an example that proves a statement false

an accepted statement of fact

are a pair of angles with a common vertex and a common side, b…

Two angles whose sum is 90 degrees

counterexample

an example that proves a statement false

postulate

an accepted statement of fact

Inductive Reasoning

Counterexample

Conditional Statements

Converse

Uses patterns to draw conclusions

A specific case for which a conjecture is false.

A logical statement with a hypothesis and a conclusion... If (hyp…

A conditional statement with the hypothesis and conclusion rev…

Inductive Reasoning

Uses patterns to draw conclusions

Counterexample

A specific case for which a conjecture is false.

counterexample

conjecture

conditional statement

hypothesis

Used to show that a conjecture is false.

a statement you believe to be true based on inductive reasonin…

a statement that can be written in the form "if p, then q"

the part p of a conditional statement following the word if.

counterexample

Used to show that a conjecture is false.

conjecture

a statement you believe to be true based on inductive reasonin…

conjecture

counterexample

deductive reasoning

inductive reasoning

a statement you believe to be true based on inductive reasoning

a drawing, statement, or number that shows that a conjecture i…

the process of using logic to draw conclusions from given fact…

the process of reasoning that a rule or statement is true beca…

conjecture

a statement you believe to be true based on inductive reasoning

counterexample

a drawing, statement, or number that shows that a conjecture i…

Linear Pairs Theorem

Supplementary Angles

Straight Angle

Complementary Angles

Two angles that form a line and are adjacent (right next to ea…

Two or more angles that add to 180 degrees.

Another name for a line. Emphasizes that a line has a 180 degr…

Two or more angles that add to 90 degrees.

Linear Pairs Theorem

Two angles that form a line and are adjacent (right next to ea…

Supplementary Angles

Two or more angles that add to 180 degrees.

conclusion

converse

contrapositive

law of syllogism

"then" part of a conditional statement

switch the if and then of a conditional (q -> p)

negate and switch the if and then (not q -> not p)

conclusion

"then" part of a conditional statement

converse

switch the if and then of a conditional (q -> p)

alternate interior angles

conjecture

line

proof by contradiction

inside the parallel lines, opposite sides of the transversal

An educated guess

A straight, unbroken set of points that goes on forever. It ha…

a form of proof that establishes the truth or validity of a pr…

alternate interior angles

inside the parallel lines, opposite sides of the transversal

conjecture

An educated guess

Conditional (p = hypothesis, q = conclu…

Converse of conditional

Bioconditional

Law of Detachment

If p, then q... symbolic form p -> q

If q, then p... symbolic form q ->p

p if and only if q... symbolic form p <-->q

Given a true conditional p -> q: If p (hypothesis) is true, th…

Conditional (p = hypothesis, q = conclu…

If p, then q... symbolic form p -> q

Converse of conditional

If q, then p... symbolic form q ->p

Line

Point

Plane

Space

A "straight" arrangement of an infinite set of points. A strai…

A basic unit of geometry used to represent position or locatio…

A flat, two-dimensional surface that extends infinitely far. H…

The set of all points.

Line

A "straight" arrangement of an infinite set of points. A strai…

Point

A basic unit of geometry used to represent position or locatio…

Conditional

Hypothesis

Conclusion

Truth value

Another name for an IF....Then Statement

The part following the if statement

The part following the then statement

The conditional can be either true or false

Conditional

Another name for an IF....Then Statement

Hypothesis

The part following the if statement

Inductive Reasoning

Conjecture

Counterexample

Conditional Statement

It is used to draw a conclusion based on a pattern.

A statement that is believed to be true.

It is an example that proves a conjecture or statement is fals…

A statement written in if then form with a hypothesis and conc…

Inductive Reasoning

It is used to draw a conclusion based on a pattern.

Conjecture

A statement that is believed to be true.

Angle Bisector

Adjacent Angles

Bisect

Bisector

A ray that divides an angle into two congruent angles

Two angles which share a vertex and a common side, but have no…

To divide a geometric figure into two congruent parts

The point, ray, line, or plane that bisects a figure

Angle Bisector

A ray that divides an angle into two congruent angles

Adjacent Angles

Two angles which share a vertex and a common side, but have no…

Two-Column Proof (Formal Proof)

Postulate/Axiom

Conditional Statement

Proof

A type of proof written in columns.

A statement that describes a fundamental relationship between…

An "if, then" statement.

A logical argument in which each statement you provide is supp…

Two-Column Proof (Formal Proof)

A type of proof written in columns.

Postulate/Axiom

A statement that describes a fundamental relationship between…

Conditional Statement

Converse

Inverse

Contrapositive

A logical statement written in "if-then" form.

Switch the "if and then".

The negation of the hypothesis and conclusion in the original…

The negation of the hypothesis and conclusion in the converse.

Conditional Statement

A logical statement written in "if-then" form.

Converse

Switch the "if and then".

Inductive Reasoning

Deductive Reasoning

Counterexample

Theorem

the process of reasoning that a rule or statement is true beca…

the process of using logic to draw conclusions from given fact…

an example where the conjecture is not true.

any statement that you can prove.

Inductive Reasoning

the process of reasoning that a rule or statement is true beca…

Deductive Reasoning

the process of using logic to draw conclusions from given fact…