Types of Triangles According to Its Sides and Angles

# Types of Triangles According to Its Sides and Angles

## Types of Triangles According to its Sides

### 1. Equilateral Triangle

An equilateral triangle consists of three equal sides and equal angles. Every side of the triangle is of the same length and every angle will be of the same measure of 60°. The following figure shows an equilateral triangle:

### 2. Isosceles Triangle

The triangle with only two equal sides is known as the isosceles triangle. Not only two equal sides, the isosceles triangle also consists of two equal angles. The following figure shows an isosceles triangle:

### 3. Scalene Triangle

The triangle with no equal sides is called a scalene triangle. Each side of this triangle is of different length. The following figure shows a scalene triangle:

## Types of Triangles According to its Angles

### 1. Right-angled Triangle

A right-angled triangle consists of one right angle and two acute angles. The right angle is an angle which measures 90 degrees and the acute angles are those angles which measure less than 90 degrees. The following figure shows the right-angled triangle:

### 2. Obtuse-angled Triangle

An obtuse-angled triangle is a combination of two acute angles and one obtuse angle. The acute angle is those angles which measure less than 90° whereas the obtuse angle is those angle which measures above 90°. The following figure shows the obtuse-angled triangle:

### 3. Acute-angled Triangle

An acute-angled triangle is a triangle which consists of three angles all of below 90° that is acute angles. The following figure shows the acute-angled triangle: