Types of Triangles

Front

What is an Isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a Right-angled triangle?

Back

A triangle that has one angle measuring 90 degrees.

Front

What is an Equilateral triangle?

Back

A triangle where all three sides are of equal length and each angle measures 60 degrees.

Front

What is a Scalene triangle?

Back

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

Front

What is the sum of the angles in any triangle?

Back

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

Front

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

Back

It is a Right-angled triangle.

Front

In an Equilateral triangle, what is the measure of each angle?

Back

Each angle measures 60 degrees.

Front

What type of triangle has no equal sides?

Back

A Scalene triangle.

Front

If a triangle has two equal sides, what type of triangle is it?

Back

It is an Isosceles triangle.

Front

What is the measure of the third angle in a triangle if the other two angles are 40 degrees and 60 degrees?

Back

The third angle measures 80 degrees.