Classification of Triangles According to Sides

Isosceles Triangle

Isoceles triangle is a triangle with following properties and as shown in the figure.

• The two sides of the isosceless triangles are equal.

• The angles opposite to the equal sides are equal.

In the above triangle, sides 'a' are equal and angle 'x' are also equal. Hence it is an Isoceles triangle.

Equilateral Triangle

Equilateral triangle is a triangle with following properties and as shown in the below geometrical figure.

• All the sides of triangle will be equal.

• The angles of triangle will be equal and 60^o

In the above triangle, all the sides of triangle denoted by 'a' are equal and angles are equal to 60^o. Hence the above geometrical figure represents a equilateral triangle.

Scalene Triangle

Scalene triangle is a triangle with following properties and as shown in the below geometrical figure.

• All the sides of triangle will be unequal.
• The angles of triangle will be unequal.

In the above triangle, all the sides of triangle denoted by a, b and c are unequal and angles x, y and z are also unequal. Hence the above geometrical figure represents a scalene triangle.