 Hello and welcome to the session. In this session we will learn about construction of a triangle when 300 sides are given. Now suppose if we had to construct a triangle A, B, C where all of its sides are given that is where A, B, C and A, C are given. Now we will start with the steps of construction. Now in the first step we will draw a line segment of length and of the given sides that are these sides of the triangle. Now here we will draw B, C first. So draw the side B, C. So here first of all we have drawn the side B, C. Now in the second step with B as the center radius is equal to length of the line segment A, B. One side of B, C have drawn on one side of B, C. Now in the next step with C as center and radius is equal to length of the line segment A, C. Draw another arc on another arc which is intersecting the first arc. In the next step join A, B. We have joined A, B. Thus the triangle A, B, C is the required triangle. Now let us discuss an example for this. We have to construct a triangle A, B, C with A, B is equal to 5.5 centimeters. B, C is equal to 6.5 centimeters is equal to 5 centimeters. This we have to construct a triangle A, B, C in which of the triangle A, B, C. Now we will start with the steps of construction. In the first step draw any one of the line segment which are given and here we will draw a line segment B, C is equal to 6.5 centimeters. So here we have drawn B, C is equal to 6.5 centimeters. Now in the second step with B as the center and radius 5.5 centimeters which is equal to the length of line segment A, B. Draw an arc on one side so with center B and radius 5.5 centimeters we have drawn an arc. Now in the next step with C as the center and radius 5.5 centimeters which is equal to the length of the line segment C, A. Draw intersecting first arc so with C as the center and radius is equal to 5 centimeters we have drawn another arc which is intersecting the first arc. Now in the next step join A, B. So here we have joined A, B and A, C and we are getting a triangle A, B, C which is the required triangle in which A, B is equal to 5.5 centimeters, A, C is equal to 5 centimeters and B, C is equal to 6.5 centimeters. Thus triangle A, B, C is the required triangle. So in this session we have learnt about construction of a triangle when three of its sides are given and let's complete the session. Hope you all have enjoyed the session.