Angle Relationships
Similar Figures
Similar Triangles
Congruent Triangles
Proofs
100
These are the two angles that form a linear pair with angle 2.
What are angles 1 and 4?
100
This is the shape of a figure that is similar to a trapezoid.
What is a trapezoid?
100
\triangle MAT ~ \triangle SCI \angle A = 50\^{\circ} . This angle is also 50 ^{\circ} .
What is \angle C ?
100
This is the type of triangle congruence shown in the diagram.
What is SSS?
100
\overline {AB} \cong \overline {CD}
\overline {CD} \cong \overline {AB} is an example of this property.
What is the symmetric property?
200
These are the two alternate interior angle pairs in the diagram.
What are 3 and 6 and 4 and 5?
200
Similar figures have ___________ sides and __________ angles.
What are proportional and congruent?
200
\triangle ABC ~ \triangle STU . This is the side in \triangle STU that corresponds to \overline{AC} .
What is \overline {SU} ?
200
This is the congruence theorem that proves these two triangles are congruent.
What is AAS?
200
\overline {AB} \cong \overline {AB} is an example of this property.
What is the reflexive property?
300
These are the two alternate exterior angle pairs in the diagram.
What are 1 and 8, and 2 and 7?
300
If one proportion is 1/3 , this is a proportion that is equivalent to it.
What is 2/6, 3/9, 4/12,5/15,6/18, 7/21, 8/24, 9/27, 10/30 , etc in the form {x}/{3x} ?
300
\triangle ENG ~ \triangle HIS \angle E = 40 ^\circ , \angle S = 70 ^\circ . This is the measure of \angle N
What is 70 ^\circ ?
300
These are the TWO triangle congruence theorems represented in the diagram.
What are SSS and SAS?
300
\angle 1 \cong \angle 2, \angle 2 \cong \angle 3 => \angle 1 \cong \angle 3 is an example of which property?
What is the transitive property?
400
These are all the angles congruent to angle 6.
What are 2, 3, and 7?
400
These proportions must be equal for the two quadrilaterals to be similar.
What are {RS}/{DE}, {ST}/{EF}, {TV}/{FG}, {VR}/{GD} ?
400
These are the values of x and y that make the two triangles similar.
What is x=4 and y=3?
400
This is the triangle congruence theorem that is represented in this diagram.
What is HL?
400
These are all the theorems to prove two triangles are congruent
What are SSS, SAS, ASA, AAS, and HL?
500
These are all the pairs of vertical angles in this diagram.
What are 1 and 4, 2 and 3, 5 and 8, 6 and 7?
500
These are the values of x and y when DABC ~ DEFG
What are x=5 and y=\frac{10}{3} ?
500
This is the value of x where \triangle DEG ~ \triangle FDG
What is 4.8?
500
This is the congruence theorem that proves these triangles congruent.
What is SAS?
500
This is what CPCTC stands for.
What is Corresponding Parts of Congruent Triangles are Congruent?