Geometry Unit 5 Review

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a criterion used to prove that two triangles are congruent if two angles and the included side of one triangle are equal to two angles and the included side of another triangle.

Front

What is the centroid of a triangle?

Back

The centroid is the point where the three medians of a triangle intersect. It is also the center of mass of the triangle.

Front

If G is the centroid of triangle ABC and BE = 18, what is the length of BG?

Back

12 (The centroid divides each median into a ratio of 2:1.)

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion used to prove that two triangles are congruent if two angles and the included side of one triangle are equal to two angles and the included side of another triangle.

Front

What is the perimeter of an equilateral triangle with side length 24?

Back

The perimeter is 72 (Perimeter = 3 × side length).

Front

What is the SSS criterion for triangle congruence?

Back

SSS stands for Side-Side-Side, a criterion used to prove that two triangles are congruent if all three sides of one triangle are equal to all three sides of another triangle.

Front

What is the SAS criterion for triangle congruence?

Back

SAS stands for Side-Angle-Side, a criterion used to prove that two triangles are congruent if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle.

Front

What is the HL criterion for triangle congruence?

Back

HL stands for Hypotenuse-Leg, a criterion used to prove that two right triangles are congruent if the hypotenuse and one leg of one triangle are equal to the hypotenuse and one leg of another triangle.

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3.

Front

If triangle ABC is equilateral, what is the measure of each angle?

Back

Each angle measures 60 degrees.