# What are the 3 ways you can classify a triangle by sides?

## What are the 3 ways you can classify a triangle by sides?

Classifying Triangles by Sides

• scalene triangle-a triangle with no congruent sides.
• isosceles triangle-a triangle with at least 2 congruent sides (i.e. 2 or 3 congruent sides)
• equilateral triangle-a triangle with exactly 3 congruent sides.
• NOTE: Congruent sides means that the sides have the same length or measure.

What are the 7 classifications of triangles?

To learn about and construct the seven types of triangles that exist in the world: equilateral, right isosceles, obtuse isosceles, acute isosceles, right scalene, obtuse scalene, and acute scalene.

### What triangles are classified by angles?

Classification by Angle Measure
Acute Triangle All interior angles measure less than 90°
Right Triangle Exactly one interior angle measures 90°
Obtuse Triangle Exactly one interior angle measures more than 90°

What are the four ways to classify a triangle by its angles?

Right Triangle: A triangle with one right angle.

• Obtuse Triangle: A triangle with one obtuse angle.
• Acute Triangle: A triangle where all three angles are acute.
• Equiangular Triangle: A triangle where all the angles are congruent.
• Scalene Triangle: A triangle where all three sides are different lengths.

## What are the 5 types of triangles?

The six types of triangles are: isosceles, equilateral, scalene, obtuse, acute, and right.

• An isosceles triangle is a triangle with two congruent sides and one unique side and angle.
• An equilateral triangle is a triangle with three congruent sides and three congruent angles.

What are the four ways to classify triangles by angles?

An isosceles triangle is a triangle in which exactly two sides are the same length. An obtuse triangle is a triangle with one angle that is greater than 90 degrees. A right angle is an angle equal to 90 degrees. A scalene triangle is a triangle in which all three sides are different lengths.

### How do you classify angles by angles?

Classifying Triangles by Angles Triangles can also be classified by their angles. In an acute triangle all three angles are acute (less than 90 degrees). A right triangle contains one right angle and two acute angles. And an obtuse triangle contains one obtuse angle (greater than 90 degrees) and two acute angles.

What are the three types of triangles classified by angles?

According to internal angles, there are three types of triangles i.e., acute, right, and obtuse-angled triangle. According to the length of sides, triangles can be classified into 3 categories i.e., Scalene, Isosceles, and Equilateral triangle.

## Can be classified according to their sides and angles?

Triangles can be classified either according to their sides or according to their angles. All of each may be of different or the same sizes; any two sides or angles may be of the same size; there may be one distinctive angle. Equilateral triangle: A triangle with all three sides equal in measure.

How do I classify a triangle?

When classifying a triangle by its sides, you should look to see if any of the sides are the same length. If no sides are the same length, then it is a scalene triangle. If two sides are the same length, then it is an isosceles triangle. If all three sides are the same length, then it is an equilateral triangle.