Figure B2 shows a contour map in scale 1:1000. The contour interval is 100 m. The heights at points A to D are: A - 778

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Figure B2 Shows A Contour Map In Scale 1 1000 The Contour Interval Is 100 M The Heights At Points A To D Are A 778 1 (79.4 KiB) Viewed 16 times

Figure B2 shows a contour map in scale 1:1000. The contour interval is 100 m. The heights at points A to D are: A - 778 m, B - 950 m, C-780 m and D -925 m. (a) Using as a guide the heights of points A-D and the value of the central contour (1000 m), determine the values of the remaining contour lines. Write the values next to the relevant contours on Worksheet B2a. (b) Plot the ground surface profile (cross-section) along line F-F. You can present your answer on Worksheet B2a if you wish. (c) Assuming a horizontal platform is to be built at 950 m elevation, calculate the areas of the cross-section you have plotted that correspond to cut and fill, respectively. (d) Calculate the area enclosed within the 1000m contour line. Figure B2 (scale 1:1000) A (778m) D (925m) 1000 A F B (950m) C (780m)