Classifying Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

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 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 is an Acute Scalene Triangle?

Back

An Acute Scalene Triangle has all angles less than 90 degrees and all sides of different lengths.

Front

What is an Acute Isosceles Triangle?

Back

An Acute Isosceles Triangle has two equal sides and all angles less than 90 degrees.

Front

What is a Right Isosceles Triangle?

Back

A Right Isosceles Triangle has one right angle (90 degrees) and two equal sides.

Front

What is a Right Scalene Triangle?

Back

A Right Scalene Triangle has one right angle and all sides of different lengths.

Front

What is an Obtuse Isosceles Triangle?

Back

An Obtuse Isosceles Triangle has one angle greater than 90 degrees and two equal sides.

Front

How do you classify a triangle with one right angle and two equal sides?

Back

It is classified as a Right Isosceles Triangle.

Front

How do you classify a triangle with all angles less than 90 degrees and all sides different?

Back

It is classified as an Acute Scalene Triangle.