DMA 2 Review

Front

What is the SAS triangle congruence theorem?

Back

The SAS (Side-Angle-Side) theorem states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the two triangles are congruent.

Front

How do you find the measure of the third angle in a triangle if two angles are known?

Back

To find the measure of the third angle, subtract the sum of the known angles from 180 degrees. For example, if the angles are 60° and 100°, the third angle is 180° - (60° + 100°) = 20°.

Front

What are vertices in geometry?

Back

Vertices are the points where two or more line segments meet to form a shape. In a triangle, the three corners are called vertices.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle in a specified direction.

Front

What is an angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

Back

Front

What is the sum of the interior angles of a triangle?

Back

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

Front

What does it mean for triangles to be congruent?

Back

Triangles are congruent if they have the same size and shape, meaning their corresponding sides and angles are equal.

Front

What is the ASA triangle congruence theorem?

Back

The ASA (Angle-Side-Angle) theorem states that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, then the two triangles are congruent.

Front

What is the SSS triangle congruence theorem?

Back

The SSS (Side-Side-Side) theorem states that if all three sides of one triangle are equal to all three sides of another triangle, then the two triangles are congruent.