Triangles & Congruence REVIEW

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence where two angles and the included side of one triangle are equal to two angles and the included side of another triangle.

Front

What does HL stand for in triangle congruence?

Back

HL stands for Hypotenuse-Leg, a criterion for triangle congruence specifically for right triangles, where the hypotenuse and one leg of one triangle are equal to the hypotenuse and one leg of another triangle.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a criterion for triangle congruence where two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle.

Front

What does SSA stand for in triangle congruence?

Back

SSA stands for Side-Side-Angle, which is not a valid criterion for triangle congruence because it can lead to ambiguous cases.

Front

What is the sum of angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Front

If angle a and angle b equal angle d, what can be inferred?

Back

Angle d is the sum of angle a and angle b, indicating that they are supplementary or part of a larger angle.

Front

How can you determine if two triangles are congruent?

Back

Two triangles are congruent if they satisfy any of the following criteria: ASA, SAS, SSS (Side-Side-Side), or HL for right triangles.

Front

What is the value of x if the equation is x + 4 = 10?

Back

x = 6.

Front

In an isosceles triangle, what can be said about the base angles?

Back

In an isosceles triangle, the base angles are equal.

Front

What is the measure of each base angle in an isosceles triangle with a vertex angle of 60 degrees?

Back

Each base angle measures 60 degrees.