Definitions
Name the Shortcut
All My Angles
Missing Criteria
Shortcut Criteria
100
What does SAS mean?
Side-Angle-Side: If two pairs of sides of two triangles are equal in length, and the included angles are equal in measurement, then the triangles are congruent.
100
If three sides of one triangle are congruent to three sides of another triangle, and the triangles are congruent.
SSS
100
Each triangle has how many interior angles?
3
100
RS and QD need to be congruent in order to prove these triangles congruent using SSS.
100
SAS
200
What does SSS mean?
Side-Side-Side: If three pairs of corresponding sides of two triangles are equal in length, then the triangles are congruent.
200
If two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent.
SAS
200
What is the sum of all three interior angles in a triangle?
180 degrees
200
JI and TS need to be congruent in order to prove that the triangles are congruent using SAS.
200
SSS
300
What does ASA mean?
Angle-Side-Angle: If two pairs of corresponding angles of two triangles are equal in length and the included sides are equal, then the triangles are congruent.
300
If two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent.
ASA
300
What kind of angle is notated by a box/square?
A right angle
300
Missing DE congruent to KJ
300
ASA
400
What does AAS mean?
Angle-Angle-Side: If two pairs of corresponding angles of two triangles are equal in measurement, and a pair of corresponding sides are equal in length, then the triangles are congruent.
400
If two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent.
AAS
400
Even though a triangle may have three congruent angles, this shortcut does not guarantee to show those two triangles will be congruent.
AAA
400
Missing YZ congruent to MN or XZ congruent to LN
400
SSS
500
State the 4 shortcuts that DO work to show two triangles are congruent.
SSS, SAS, ASA, & SAA
500
This shortcut fails to guarantee congruent triangles because you can create TWO different triangles instead of one.
SSA
500
Intersecting lines create these kind of angles.
Vertical angles
500
Missing angle FKL congruent to angle JKL or angle FLK congruent to angle JKL
500
SAA