Top latest Five Property Land Survey Bangladesh Urban news
দিয়ারা আঞ্চলিক সেটেলমেন্ট অফিস, বরিশালDutch mathematician Willebrord Snellius (a.k.a. Snel van Royen) introduced the fashionable systematic usage of triangulation. In 1615 he surveyed the distance from Alkmaar to Breda, around seventy two miles (116 km). He underestimated this dista