THE BEST SIDE OF SURVEYING AND MAPPING BANGLADESH

দিয়ারা আঞ্চলিক সেটেলমেন্ট অফিস, বরিশালDutch mathematician Willebrord Snellius (a.k.a. Snel van Royen) launched the trendy systematic use of triangulation. In 1615 he surveyed the space from Alkmaar to Breda, about seventy two miles (116 km). He underestimated this length by 3.5%. Th