Triangle Classification

Front

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

Back

Equilateral, Isosceles, Scalene.

Front

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

Back

Acute, Right, Obtuse.

Front

What defines an equilateral triangle?

Back

A triangle with all three sides of equal length and all angles measuring 60 degrees.

Front

What defines an isosceles triangle?

Back

A triangle with at least two sides of equal length and the angles opposite those sides are equal.

Front

What defines a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

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 does it mean for a triangle to be isosceles?

Back

It has at least two sides that are equal in length.

Front

How can you identify a right triangle?

Back

By the presence of a 90-degree angle.