Definition: A statement that one of two propositions is true if and only if the other is.
My Definition: A statement that doesn't use "If, then", it uses "If and only if"

Congruent Complement Theorem - By Katie Brauckmann

Definition: If two angles are congruent to the same angle (or congruent angels), then they are congruent. My Definition: if you have three angles the first two are congruent to the third, then the first two angles are congruent.

Contrapostive definition : the equivalent statement formed by negating the hypothesis and the conclusion of the converse of a conditional statement. My Definition: A statement that is formed by negating the converse form of a statement.

Definition: a reversed conditional statement; if a conditional is p -> q, then its converse is q -> p
My Definition: the opposite order of a conditional statement; instead of p -> q, it's q -> p

Definition: A type of logical statement that has two parts, a hypthisis and a conclusion. If, Then Statements. My Deffinition: A statement that has a hypothisis and conclusion. If p, Then q.

Real Definition- states that the product of a number and a sum is equal to the sum of the individuals products of the addends and the number My Definition- multiplying the numbers in the perenthesis by the interger or variable outside of the perenthesis

Definition-Using facts, definitions, accepted properties, and the laws of logic to form a logical argument.
My Definition - Using facts to make arguments

Inductive Reasoning- Ari Bridge Definition~ A process that includes looking for patterns and making conjectures. My Definition~ Comming to a conclusion based on a pattern.

Definition: If two lines intersect, then their intersection is exactly one point.
My definition: If two lines intersect, then they intersect at one point.

My definition: A line that makes a 90 degree angle with another line and makes it look like an upside-down "T".
Book definition: Two lines that intersect to form a right angle.

My definition- If there are two points in a plane, then the whole line that has the two points is also within the same plane.
Book Definition- If two points lie in a plane, then then entire line containgin those two points lies in that plane.

Video:(Made by Me, sorry if its a little confusing)

## Buddy Arcara- Addition Property of Equality

## Definition- If the same number is added to both sides of an equation, the two side remain equal.

## My Definition- add the same number to both sides.

Addition Property of Equality - YourTeache.com - Geometry Help

## Angle Congruence

Definition-Two angles who have the same angle (measure)My Definition-Two angles who's measure is the exact same.

Video-http://www.youtube.com/watch?v=hYnG2y6_luU

## Biconditional Statement

Definition: A statement that one of two propositions is true if and only if the other is.My Definition: A statement that doesn't use "If, then", it uses "If and only if"

Biconditional Statement Video

## Conjecture by Jeremiah

## Definition: An unproven statement, that is based on observations

My defintion: A statement that doesnt need a proof, and that might not be correcthttp://www.youtube.com/watch?v=tPJgCh9FHNI

- By Katie BrauckmannCongruent Complement Theorem: If two angles are congruent to the same angle (or congruent angels), then they are congruent.Definitionif you have three angles the first two are congruent to the third, then the first two angles are congruent.My Definition:http://www.youtube.com/watch?v=1VsQCzYrhf4

(it covers a lot, but the part about congruent complement theorem is about 3 minutes in)

Congruent Supplement TheoremTrue definition- If two angles are supplement to an anglethen, that two angles are congruent.My definition- If angle A is supplementary to angle B and If angle C is supplementary to angle A, then angle B is congruent to angle C\http://www.youtube.com/watch?v=4iYEpNHhnbM

Contrapositive by Robin BaiContrapostive definition : the equivalent statement formed by negating the hypothesis and the conclusion of the converse of a conditional statement.My Definition: A statement that is formed by negating the converse form of a statement.The last one is contrapositive.http://www.youtube.com/watch?v=IHd8jiUF3Lk

## Converse - Rachel Lucas

Definition: a reversed conditional statement; if a conditional is p -> q, then its converse is q -> pMy Definition: the opposite order of a conditional statement; instead of p -> q, it's q -> p

http://www.youtube.com/watch?v=LJwuqqcXaPE

Conditional- Alayna CannonDefinition: A type of logical statement that has two parts, a hypthisis and a conclusion. If, Then Statements.My Deffinition: A statement that has a hypothisis and conclusion. If p, Then q.https://webmail.east.cox.net/do/redirect?url=http%253A%252F%252Fblip.tv%252Fyourteachercom-math-help%252Fmath-help-geometry-conditional-statements-450751

## Counterexample- Hunter McManus

## Definition: A specific case that shows a conjecture is false.

## My Defintion: Something that proves a statement to be false.

## Division Property of Equality- Noshin Abedin

Real Definition: If a=b, then

a=bc c

My Definition: dividing both sides of an equation by the same non-zero number, which doesn't affect the equation

http://www.youtube.com/watch?v=qfWdc5v77y8

Distributive Property- Hannah SalmonReal Definition- states that the product of a number and a sum is equal to the sum of the individuals products of the addends and the numberMy Definition- multiplying the numbers in the perenthesis by the interger or variable outside of the perenthesishttp://www.youtube.com/watch?feature=player_detailpage&v=yiQ_q0oXVdU

## Deductive Reasoning - Myles Ross

Definition-Using facts, definitions, accepted properties, and the laws of logic to form a logical argument.My Definition - Using facts to make arguments

deductive resoning

## Equivalent Statements - Grace Bowie

Definition: Two statements that are both true or both falseMy definition: Statements that mean the same thing

Video: http://youtu.be/D6AutK6EDug

## Inverse- Alayna Cannon

## Definition: The statement formed by negating the hypothisis and conclusion of the converse of a conditional statement.

## My Definition: A statement that has a hupothisis and a conclusion, but they go like If not p, Then not q.

http://www.youtube.com/watch?v=12CeL-hFky8

Inductive Reasoning- Ari BridgeDefinition~ A process that includes looking for patterns and making conjectures.My Definition~ Comming to a conclusion based on a pattern.http://www.youtube.com/watch?v=wg-5LvwBnc4

## Law of Detachment- Livia Crispen

## Definiton-If the hypothesis of a true conditional statement is true, then the conclusion is also true.

## My definition- A valid conclusion to a true situation

picture-Video- http://www.youtube.com/watch?v=PQjpaaLwk58

## Law of Syllogism - Jackie DiFulvio

## Definition - Similar to the transitive property of equality in Algebra. (If a=b and =c, then a=c)

## My Definition - The two terms in the middle must be the same for the two terms on the ends to make sense.

## Picture -

## Video - http://www.youtube.com/watch?v=AbEzp00N_ek

## Multiplicative Property of Equality-Claire Du

## Definition-allows one to multiply the same quantity by both sides of an equation

## My definition-multiplying both sides of an equation by the same amount is equal to the original equation

## Video: http://www.youtube.com/watch?v=YzVjHA0mG1Q

## Postulate 5 - Tyler Mills

Definition: Through any two points there is exactly one line.My definition: If you have two points, then you can connect them with one line

__http://blip.tv/mr-browns-math-lectures/lecture-2-5-geometry-4217932__

sorry i couldn't find a short video, only about the first minute and a half of this video describes postulate 5.I didn't know how cut it shorter.

## Postulate 7 - Jimmy Qing

Definition: If two lines intersect, then their intersection is exactly one point.My definition: If two lines intersect, then they intersect at one point.

Video: Intersecting lines

## Perpendicular Lines - Keely Eubank

My definition: A line that makes a 90 degree angle with another line and makes it look like an upside-down "T".Book definition: Two lines that intersect to form a right angle.

Video: http://www.youtube.com/watch?v=VVvErpLG2EQ

## Postulate 8-Simeon Roberts

My definition: With any 3 points,not in a line, there is a plane.Book definition: Through any 3 non collinear points there is exactly one plane.

video: http://www.youtube.com/watch?v=L1gYD2TLNN4

My definition- If there are two points in a plane, then the whole line that has the two points is also within the same plane.Postulate 10- Ji Sung KimBook Definition- If two points lie in a plane, then then entire line containgin those two points lies in that plane.

Video:(Made by Me, sorry if its a little confusing)