Extracted text: Problem 1: The accompanying sketch shows a tract of land which has been plotted from the data of a topographic survey. Plot the contour lines using 1m contour interval. The contour line with an elevation of 105m and 110 should be shown as the index contours. Determine the area of the lot using triangle Line Bearing Distance method or DMD method. Plot the directions АВ N 65°45' E 45.67m and distance, use scale of 1:500 or 1cm=5cm BC S 4°10' E 40.56m CD S 32°35' W 29.78m DE S 82°34' W 51.18m AE N 04°14' E 42.16m Loation of points a, b, c: a is 21m from B and 29m from C bis 39 m from E and 23m from A cis 32m from C and 17m from D B Elev 101.20m 103.70m A a•107.30m C 104.50m C•110.67m b•105.10 103.50MD 104.70M•E Road