Classifying Triangles
Angles, Angles, & Angles
Triangle 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

3 sides of one triangle are marked congruent to 3 corresponding sides of another triangle

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 Equiangular Equilateral

300
When two lines intersect the opposite angles are equal to each other.
What is 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 then 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
It states if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of another right triangle, then the triangles are congruent.
What is Hypotenuse-Leg Theorem
400
The non congruent side of an isosceles triangle.
What is a base
500
All angles measure less then 90 degrees.
What is acute.
500

An exterior angle of a triangle is equal to the sum of what

What is the 2 remote interior angles?

500

This works only for right triangles -- two sides of one triangle are marked congruent to two sides of another triangle

What is HL

500
Besides one angle you need this number of sides to prove a right triangle congruent?
What is two.
500
The point where two congruent legs come together.
What is Vertex Angle
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