Unit 3

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, 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 is the definition of a perpendicular bisector?

Back

A perpendicular bisector is a line that divides a segment into two equal parts at a 90-degree angle.

Front

What is a midsegment in a triangle?

Back

A midsegment is a segment that connects the midpoints of two sides of a triangle and is parallel to the third side.

Front

How do you determine if two triangles are congruent using SAS?

Back

Two triangles are congruent by SAS (Side-Angle-Side) 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 formula for finding the length of a midsegment in a triangle?

Back

The length of a midsegment is half the length of the third side of the triangle.

Front

What is the definition of an altitude in a triangle?

Back

An altitude is a perpendicular segment from a vertex to the line containing the opposite side.

Front

What does SSA stand for in triangle congruence?

Back

SSA stands for Side-Side-Angle, which does not guarantee triangle congruence and can lead to ambiguous cases.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

How can you identify an angle bisector?

Back

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

Front

What is the definition of a median in a triangle?

Back

A median is a segment that connects a vertex of a triangle to the midpoint of the opposite side.