1. INTERPOLATING CONTOURS GRAPHICALLY, The accompanying tabulation gives elevations of points over the area of a 30m by 40m city lot. The elevations were obtained by the Checkerboard Method using 10-m squares. Point A-1 is located at the northwest corner of the lot and point E-4 at the southeast corner. All elevations are in meters. POINT 2 3 4 A 878.8 682.5 383.5 883.6 883.2 805.9: 893.7 887.2 C 882.8 838.6 891.8 889.3 D 882.5 890.4 892. 6 609.5 883.2 8 80. 5 892.8 893.5 Requirements: a) Plot the contours using a horizontal scale of 6cm=10m and a contour interval of 1 meter. b) Arrange the plotting paper so that the longer side is vertical (use 8%" by 11" bond paper). c) All corner. designations and corresponding elevations must be indicated, including all vertical and horizontal lines. d) Show the direction of north and indicate the scale used. e) Indicate the elevations of the following index contours: 880, 885. 890, and 895m. The thickness of the index contours must be drawn about twice the thickness of intermediate contours. f) Use a pencil for the initial plot and ink the final plot using a technical pen