 Hello all and welcome to the session. Today the question is, construct a triangle ABC in which angle B is equal to 90 degrees, BC is equal to 3 cm and AB is equal to 5 cm. Complete the correlator ABCD in which AC is the line of symmetry. Name the figure ABCD. Now before starting the construction we should know about line of symmetry. It is a line about which the figure may be folded so that the few parts of the figure will coincide. So this will work as the clear idea for solving out this question. And now let us start with the solution. Now before starting the construction we should draw a diagram and graph that is of triangle ABC in which angle B is 90 degrees, BC is equal to 3 cm and AB is equal to 5 cm. Now we will start with the steps of construction. In the first step draw a line segment BC is equal to 3 cm. Now here you can see that we have drawn a line segment BC is equal to 3 cm. Now in the second step make angle CBX is equal to 90 degrees. Now here angle CBX we have constructed as 90 degrees. Now in the next step with BA centre and radius 5 cm draw an arc to the ray BX at A. Now here you can see with B width centre and the arc 5 cm we have cut in the ray BX at the point A. Now in the next step drawing AC and with that the triangle ABC is the required triangle in which angle B is equal to 90 degrees, BC is equal to 3 cm and AB is equal to 5 cm. Now you can see here we have drawn AC and we are getting a triangle ABC in which BC is equal to 3 cm, AB is equal to 5 cm and angle ABC is equal to 90 degrees. Now in the question that is asked we have to complete the quadrilateral ABCD in which AC is the line of symmetry. Therefore if AC is the line of symmetry for the quadrilateral ABCD then the side adjacent to AB should also be equal to 5 cm and the side adjacent to BC should also be equal to 3 cm. Now in the next step with CS centre and 3 cm as radius draw an arc and also with AC centre and 5 cm as radius draw an arc intersecting the previous arc. So we are getting the intersecting arcs like this. Now in the next step join AD and CD. So drawing AD and CD we are getting a figure ABCD which is the required quadrilateral. Therefore ABCD is the required quadrilateral in which AC is the line of symmetry. Now here AC is the line of symmetry of the quadrilateral ABCD and this quadrilateral ABCD is a kite. So this is the required construction and that is all for this session. Hope you all have enjoyed the session.