Classifying Triangles
No equal sides or angles.
Scalene
Number of angles in a triangle.
3
10)
SSS
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.
Pythagorean Theorem
Has two congruent sides called legs.
Isosceles
Two equal sides and angles.
Isosceles
The value of all three angles in a triangle added together.
180 Degrees
9)
SAS
The sum of the two acute angles in a right triangle.
90 Degrees
All three sides are congruent.
Equilateral
All sides and angles are equal.
Equilateral
When two lines intersect the opposite angles are equal to each other.
Vertical Angles
4)
ASA
The two sides of a right triangle that form the 90 degree angle.
Legs
All three angles equal 60 degrees.
Equiangular
Has an angle whose measurement is greater then 90 degrees.
Obtuse
The little box in the corner of a triangle.
Right Angle
1)
Not Congruent
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.
Hypotenuse-Leg Theorem
The non congruent side of an isosceles triangle.
Base
All angles measure less then 90 degrees.
Acute
Equal to the sum of the opposite interior angles.
Exterior Angle
7)
Not Congruent
Besides one angle you need this number of sides to prove a right triangle congruent?
2
The point where two congruent legs come together.
Vertex Angle