In geodetic survey higher accuracy is achieved, if * Angles between the curved lines are treated as plane angles None of these Curvature of the earth surface is taken into account Curvature of the earth surface is ignored

FUNDAMENTALS OF SURVEYING 1 All azimuths are measured from South. All angles must be written to the nearest minute only. All latitudes and departures must be written to two decimal places only. 3.The algebraic sum of latitude and departure of a six-sided tract of land are as follows: EL = - 1.35m, precision or relative error of the survey. ED = + 1.18 m. If the total length of boundary is 455. 56m, determine the 4.The latitude and departure of a traverse line were computed as +77.56m and – 87.78m respectively. a) Determine its bearing b) Determine azimuth, c) Determine is distance.

The distance scaled on a 1:9,500 map between two adjacent contours is 37mm. Determine the slope of the ground in mils if the contour interval is 2 meters.

Please this question is related to surveying engineering and some questions have to solve by Least Square Adjustment (LSA) using matrices. Thanks in advance.