Angle Bisector Theorem by Paper Folding | Bengali
Channel: Arvind Gupta
Date: 2016-05-02

In this exercise we will fold all the 3 angle bisectors of a triangle and show that they meet at a SINGLE point. First make any scalene triangle. All its 3 sides should be of different lengths. And therefore its three angles will also be different from each other. First we will fold the base (A) of the triangle and then another side (B). Then place edge B on A and fold. The fold will bisect the angle and is called the angle bisector. Draw the first angle bisector with pen. Then fold the third side (C) of the triangle. Now place (C) on (B) to get the second angle bisector. Draw this angle bisector with a pen. Finally place (C) on (A) and fold to bisect the third angle. Draw this angle bisector with the pen. You will see that all the three angle bisectors intersect or pass through the same point with is called the IN-CENTER of the triangle.

This work is supported by IUCAA (www.iucaa.in) and TATA Trust (www.tata.com/aboutus/sub_index/Tata-trusts)

Credits:,Ashok Rupner, Manish Jain, Pradnya Pujari, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar

Dubbed in Bengali by Krishnanjan Mondal from Pratham's Science Learning Program TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org