Classify Triangles by Sides

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

How do you classify a triangle with two equal sides?

Back

It is classified as an isosceles triangle.

Front

How do you classify a triangle with three equal sides?

Back

It is classified as an equilateral triangle.

Front

How do you classify a triangle with no equal sides?

Back

It is classified as a scalene triangle.

Front

If a triangle has one angle greater than 90 degrees, what type of triangle is it?

Back

It is called an obtuse triangle.

Front

If a triangle has one angle less than 90 degrees, what type of triangle is it?

Back

It is called an acute triangle.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is 180 degrees.

Front

If a triangle has sides of lengths 3 cm, 4 cm, and 5 cm, how is it classified?

Back

It is classified as a scalene triangle.