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Classifying Triangles
Angles, Angles, & Angles
Triangle
Congruence
Right Triangles
Isosceles and Equilateral Triangles
100

A triangle with no Equal Sides or Angles

What is Scalene

100
Number of angles in a triangle.
What is 3 angles
100

Two triangles with 3 pair of congruent sides are congruent by which theorem?

What is SSS or Side - Side - Side

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

A triangle with two congruent 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 measure of 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

A triangle in which all sides and angles are congruent.

What is Equilateral

300

When two lines intersect forming opposite angles which 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

A triangle with one angle measuring more than 90 degrees.

What is Obtuse

400

Measure represented by 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

The side opposite the right angle.

What is hypotenuse

400
The non congruent side of an isosceles triangle.
What is a base
500

A triangle in which all angles measure less than 90 degrees.

What is acute.

500

The angle formed by two sides of a triangle.

What is an included angle?

500

This theorem states that two right triangles are congruent if they have congruent hypotenuses and one pair of congruent legs

What is HL or Hypotenuse - Leg

500

The sides of a right triangle that have an included angle measuring 90 degrees.

What are legs

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