LAND SURVEY EXPERTS BD NO FURTHER A MYSTERY

ফেইসবুক পেইজ ভিজিট ও লাইক দিন। মাননীয় উপদেষ্টাDutch mathematician Willebrord Snellius (a.k.a. Snel van Royen) launched the trendy systematic use of triangulation. In 1615 he surveyed the distance from Alkmaar to Breda, about seventy two miles (116 km). He underestimated