Vocabulary
Theorems
What Theorem Would You Use?
Blast From The Past
Random Facts
Congruent Statements
Proofs
100
This is the definition of congruent triangles.
All corresponding sides and angles are congruent.
100
The Triangle Sum Theorem states that the sum of the measures of the interior angles of a triangle is this.
What is 180 degrees?
100
To prove triangle CBD congruent to triangle YZX.
What is SSS?
100
This is the formula for finding the area of a triangle.
What is A=(1/2)bh
100
The winter solstice occurs on this date.
What is December 21?
100
Side CA =
<B =
CA = DF
<B = < E
100
What are the reasons for statement 1 & 2?
What is given?
200
A hypotenuse is the longest side of this type of triangle.
What is a right triangle?
200
We use this property to show that BD = BD.
What is the Reflexive Property?
200
State the additional information need and method to prove triangles are congruent.
What is vertical angles and ASA?
200
This is the result of the intersection of two planes.
What is a line?
200
Name two Holidays that land on the same day of the week every year.
What are Thanksgiving and Easter (Good Friday is also an option)?
200
What is B.
200
What are the reasons for statement 3 & 4? 
3. Alternate Interior Angle Theorem.
4. Reflexive Property.
300
A triangle with 3 congruent sides and 3 congruent angles.
What is an Equilateral Triangle?
300
Name the 3 criteria to use HL to prove triangles are congruent.
What is 2 right triangles, congruent hypotenuse, and 1 pair of congruent legs.
300
Not enough Info, the angle is in the wrong spot.
300
To get the converse of a statement, you flip the _____ and the _______.
What are the if, then statements.
300
Name of the rocket that launched and crashed on Tuesday, from Space X
What is SN 9?
300
Write the congruent statement for the triangles.
Triangle CBD is congruent to Triangle YZX
300
What is the reason for statement 5? Justify.
5. SAS
400
These are the two definitions for an isosceles triangle.
What are "a triangle with at least 2 congruent sides" and "a triangle with at least 2 congruent angles"?
400
What method proves the triangles are congruent. Draw the picture and mark of given info.
ASA
400
State the additional information need and method to prove the triangles are congruent.
AAS
JM = JM reflexive
<UMJ = <PJM alternate interior angle theorem
400
Angle 4 and angle 8 
What are corresponding angles?
400
Scene from what movie?
What is Dumb and Dumber?
400
List all of the corresponding angles and sides.
<C & <Y CB & YZ
<B & <X YX & CD
<D & <Y XZ & BD
400
1. PL = YL
2. A is the Midpoint of PY
3. PA = AY
4. LA = LA
5. triangle PLA = triangle YLA
500
This is what CPCTC stands for
Corresponding Parts of Congruent Triangles are Congruent.
500
Name the theorem: If two angles of a triangle are congruent, then the sides opposite them are congruent.
What is the Converse of Isosceles Triangle Theorem?
500
State the additional information need and method to prove the triangles are congruent.
What is HL since MH = MH (reflexive property)?
500
In a plane, if two lines are perpendicular to the same line, then we can make this conclusion.
What is the two lines are parallel?
500
School days left in this year
If its Wednesday, 68
If its Thursday, 67
If its Friday, 66
500
Explain why the triangles are congruent and write the congruent statement.
BC = BC (reflexive)
so AC = DB (segment addition postulate)
Then the triangles are congruent by HL
so triangle AFC = triangle DEB
500
1. Given
2. XI = IM
3. Given
4. AI = IO definition of a midpoint
5. Vertical Angle Theorem
6. SAS