Triangle Congruence and Angle Properties

Front

What is Triangle Congruence?

Back

Triangle congruence refers to the condition where two triangles are identical in shape and size, meaning their corresponding sides and angles are equal.

Front

What are the criteria for triangle congruence?

Back

The criteria for triangle congruence include: 1) Side-Side-Side (SSS), 2) Side-Angle-Side (SAS), 3) Angle-Side-Angle (ASA), 4) Angle-Angle-Side (AAS), and 5) Hypotenuse-Leg (HL) for right triangles.

Front

What is an Equilateral Triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal, each measuring 60 degrees.

Front

What is a Right Triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What is an Obtuse Triangle?

Back

An obtuse triangle is a triangle that has one angle measuring more than 90 degrees.

Front

What is an Acute Triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What is the formula for 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 is the formula for the sum of the interior angles of a polygon?

Back

The formula for the sum of the interior angles of a polygon with n sides is S = (n-2) × 180 degrees.

Front

What does it mean for segments to be congruent?

Back

Segments are congruent if they have the same length.

Front

What is the relationship between the angles in a triangle?

Back

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