Types of Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the three 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 types of triangles based on angles?

Back

Acute, Right, Obtuse.

Front

What is an acute triangle?

Back

A triangle with all angles less than 90 degrees.

Front

What is a right triangle?

Back

A triangle with one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle with one angle greater than 90 degrees.

Front

How can you identify an isosceles triangle?

Back

Look for at least two equal sides.