ফেইসবুক পেইজ ভিজিট ও লাইক দিন। মাননীয় উপদেষ্টা Dutch mathematician Willebrord Snellius (a.k.a. Snel van Royen) introduced the trendy systematic use of triangulation. In 1615 he surveyed the gap from Alkmaar to Breda, about seventy two miles (116 km). He underestimated this length by three.five%. The survey was a https://professional-land-survey98776.mybuzzblog.com/8986058/5-tips-about-land-surveying-solutions-bd-you-can-use-today