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Classifying Triangles
Angles, Angles, & Angles
SSS, SAS, ASA, & AAS Congruence
Right Triangles
Isosceles and Equilateral Triangles
100
No Equal Sides or Angles
What is Scalene
100
Number of angles in a triangle.
What is 3 angles
100
Side Side Side
What is SSS
100
It states that the sum of the squares of the legs of a right triangle equals the square of the hypotenuse of a right triangle.
What is the Pythagorean Theorem?
100
Has two congruent sides called legs.
What is Isosceles Triangle
200
Two equal sides and angles
What is Isosceles
200

The value of all three angles in a triangle added together.

What is 180 degrees?

200
If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent.
What is SAS
200
The sum of the two acute angles in a right triangle.
What is 90 degrees
200
All three sides are congruent.
What is Equilateral Triangle
300
All sides and angles are equal.
What is Equilateral
300

When two lines intersect, the opposite angles are equal to each other.

What are vertical angles?

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
The two sides of a right triangle that form the 90 degree angle.
What are the legs
300
All three angles equal 60 degrees.
What is Equiangular.
400

Has an angle whose measurement is greater than 90 degrees.

What is Obtuse

400
The little box in the corner of a triangle.
What is 90 degrees.
400
If two angles and the non-included side one triangle are congruent to two angles and the non-included angle of another triangle, then these two triangles are congruent.
What is AAS
400

Of the triangle types isosceles, scalene, and equilateral, a right triangle cannot be this one.

What is equilateral?

400

The non-congruent side of an isosceles triangle.

What is a base?

500

All angles measure less than 90 degrees.

What is acute?

500
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
What is Exterior Angle Theorem
500
If three sides of one triangle are congruent to three sides of another triangle, then these two triangles are congruent.
What is SSS
500

Besides one angle, you need this number of sides to prove two right triangles congruent.

What is two?

500
The point where two congruent legs come together.
What is Vertex Angle