Class -8 Math (Math) Kashe Dekhi-20.2//8th Grade Mathematics/chapter -20/Wbbse @mathtutorsanjib #maths #class8math #mathtutorsanjib In this video, the numbers 1 to 5 of Kashe Dekhi 20.2 of the eighth grade math book have been discussed. Here, the idea about the sum of the interior angles of a polygon has been given. In addition, the name of this chapter is Geometric Proof. part-1 • Class 8 math koshe dekhi 20.1 page 197 dag... part-2 • Class 8 math koshe dekhi 20.1 page 197//cl... part-3 • Class 8 math koshe dekhi 20.1(part-3) page... playlist link • CLASS 8/MATH