Classifying Triangles

Front

What are the three main types of triangles based on side lengths?

Back

Equilateral, Isosceles, Scalene.

Front

What is an Equilateral triangle?

Back

A triangle with all three sides of equal length.

Front

What is an Isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a Scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What are the three main types of triangles based on angle measures?

Back

Acute, Right, Obtuse.

Front

What is an Acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is a Right triangle?

Back

A triangle that has one angle measuring exactly 90 degrees.

Front

What is an Obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Front

What is the definition of an angle?

Back

An angle is formed by two rays with a common endpoint, called the vertex.

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.