In Geometry, a triangle is a three-sided polygon that consists of three edges and three vertices. The most important property of a triangle is that the sum of the internal angles of a triangle is equal to 180 degrees. This property is called the angle sum property of a triangle.

- The word triangle is taken from the Latin word ‘triangulus’, which means three-cornered. We use the symbol to denote a triangle. The different kinds of Triangles on the basis of sides and angles are as follow:

__Types of triangles based on sides__

: A triangle in which all three sides are unequal in length.__Scalene Triangle__: A triangle in which two of its sides are equal in length.__Isosceles Triangle__: A triangle that has all three sides equal in length.__Equilateral Triangle__

** Types of triangles based on Angles**

__Acute Angled Triangle__:^{0}.: A triangle whose one angle is obtuse or more than 90__Obtuse Angled Triangle__^{0}but less than 180^{0}.: A triangle whose one angle is a right angle (that is 90__Right Angled Triangle__^{0}).

A hands-on activity on Types of triangles was conducted for grade V students. The activity aimed at identifying the types of triangles based on the length of their sides and interior angles.

Students actively participated in this activity. They made different types of triangles with the help of matchsticks and presented it confidently with a brief explanation of the types of triangles. The enthusiasm among the students was worth watching. Through this activity, students were able to identify and classify the types of triangles on the basis of the length of the sides and size of the angles. This hands-on activity helped in shaping the analytical skills of young Stafordians and boosted up their self-confidence and morale. It also brought out the hidden talent in students. Without the cooperation of parents, the activity would not have been possible. In the end, the teacher appreciated the efforts of parents and the students.