Types of Triangles

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 where all three sides are of equal length and all angles are 60°.

Front

What is a Scalene Triangle?

Back

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

Front

What is a Right-angled Triangle?

Back

A triangle that has one angle measuring 90°.

Front

What is an Obtuse Triangle?

Back

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

Front

What is an Acute Triangle?

Back

A triangle where all angles are less than 90°.

Front

How can you identify an Isosceles Triangle?

Back

Look for at least two equal sides and two equal angles.

Front

What is the sum of angles in any triangle?

Back

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

Front

What type of triangle has one angle greater than 90°?

Back

An Obtuse Triangle.

Front

What type of triangle has all angles less than 90°?

Back

An Acute Triangle.