Airplane surveying assumes the Earth is flat. Curvature and spheroidal condition on the Earth is neglected. In this type of surveying all triangles shaped by joining survey strains are considered as aircraft triangles. Textual content size A A A Shade C C C C কনটেন্টটি শেয়ার করতে ক্লিক করুন https://waynex974vem3.wikiworldstock.com/user