Triangle Congruency/Isos/Equil

Front

What does the acronym ASA stand for in triangle congruence?

Back

Angle-Side-Angle: A triangle is congruent if two angles and the included side are congruent to two angles and the included side of another triangle.

Front

What does the acronym SSS stand for in triangle congruence?

Back

Side-Side-Side: A triangle is congruent if all three sides of one triangle are congruent to all three sides of another triangle.

Front

What does the acronym SAS stand for in triangle congruence?

Back

Side-Angle-Side: A triangle is congruent if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle.

Front

What does the acronym HL stand for in triangle congruence?

Back

Hypotenuse-Leg: A triangle is congruent if the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle.

Front

If two sides of a triangle are congruent, what can be said about the angles opposite those sides?

Back

The angles opposite the congruent sides are also congruent.

Front

What is the value of x if the triangle has angles measuring 30°, 60°, and x°?

Back

x = 90° (The sum of angles in a triangle is 180°.)

Front

Complete the congruence statement: Triangle ABC is congruent to triangle ___.

Back

Triangle CBA (The order of the vertices must correspond to the congruent angles.)

Front

If two angles of a triangle are congruent, what can be said about the sides opposite those angles?

Back

The sides opposite the congruent angles are also congruent.

Front

What is the relationship between the angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the congruent sides are equal.

Front

How do you determine if two triangles are congruent using the SSS theorem?

Back

Measure all three sides of both triangles. If all three sides of one triangle are equal to the corresponding sides of the other triangle, they are congruent.