Classifying Triangles
Find the angles
SSS, SAS, ASA, & AAS Congruence
More Triangles
Name That Theorem!
100

No congruent sides or angles

What is Scalene?

100

Describe angle 1 and angle 2.

What are alternate interior angles?

100
Side Side Side
What is SSS
100

Two triangles are congruent because two pairs of corresponding sides and the included angle are congruent

What is SAS?

100


SSS

200

Two congruent sides and angles

What is Isosceles?

200

If m<d = x2 and m<h = 90x - 2025, what is the measure of those two angles?

What is 45 degrees?

200

This method could prove the two triangles congruent using only the given diagram.

What is SAS?

200

The sum of the two acute angles in a right triangle.

What is 90 degrees?

200


AAS

300

All sides and angles are congruent.

What is equilateral/equiangular?

300

If m<LNM = 180-2x and m<O = m<P = 50, what is the value of x?

x = 50

300

If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then these two triangles are congruent.

What is ASA?

300

Two angles of a triangle and the included side are congruent to the corresponding angles and sides of another triangle.

What is ASA 

300


SAS

400

Has an angle whose measurement is greater then 90 degrees.

What is Obtuse?

400
In what year was the first video ever recorded?

1888 - it was 2.11 seconds long and showed a garden scene.

400

If it has two angles and one side, but is not ASA, then it must be this.

What is AAS?

400

A part of a triangle that is congruent to itself

The reflexive property

400


ASA

500

All angles measure less then 90 degrees.

What is acute?

500

Given: AB is parallel to ED and m<ECD = m<CED = 40. What is the measure of angle ABC?

100 degrees. (Hint: use alternate interior angles)

500

This method could be used to prove the two triangles above are congruent using just the distance formula.

What is SSS?

500

Besides one angle you need this number of sides to prove a right triangle congruent?

What is two.

500


SAS