History Unit 4 Flashcards
What are congruent polygons?
Polygons with all the same parts
How many parts are in each polygon?
Double the amount of times
What are the way to prove triangles congruent?
SSS SAS ASA AAS HL
What are the 2 ways that don’t work to prove triangles congruent?
ASS and AAA
What are the three things we need in order for HL to work?
A right angle, hypotenuse, and a leg
What is CPCTC?
If the triangles are congruent, then all parts are also congruent.
What is the Isosceles Triangle Theorem?
The angles across from the congruent sides are also congruent.
In a proof where should CPCTC be?
At the end.
Identify four specific parts of an isosceles triangle.
The legs, base, base angles, and the vertex angle.
What are the benefits of separating triangles?
It makes it easier to prove them congruent.
