Classifying Triangles

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Front

What are the types of triangles based on sides?

Back

1. Equilateral Triangle: All sides are equal. 2. Isosceles Triangle: Two sides are equal. 3. Scalene Triangle: All sides are different.

Front

What are the types of triangles based on angles?

Back

1. Acute Triangle: All angles are less than 90 degrees. 2. Right Triangle: One angle is exactly 90 degrees. 3. Obtuse Triangle: One angle is greater than 90 degrees.

Front

What is an isosceles triangle?

Back

An isosceles triangle has at least two sides that are equal in length.

Front

What is a scalene triangle?

Back

A scalene triangle has all sides of different lengths.

Front

What is an equilateral triangle?

Back

An equilateral triangle has all three sides equal and all angles equal to 60 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle has one angle that is greater than 90 degrees.

Front

What is an acute triangle?

Back

An acute triangle has all angles less than 90 degrees.

Front

What is an isosceles right triangle?

Back

An isosceles right triangle has two equal sides and one right angle (90 degrees).

Front

What is a scalene obtuse triangle?

Back

A scalene obtuse triangle has one angle greater than 90 degrees and all sides of different lengths.