সমকোণ কাকে বলে।How to learn the right angle tutorial in bangla.

Описание: In tthis video, I aam going to teach you how to llearn the right angle.These video used simple techniques. You learn can easy. Created by VideoShow:http://videoshowapp.com/free
সমকোণ কাকে বলে।How to learn the right angle tutorial in bangla.