The accompanying tabulation gives elevations of points over the area of a 50 m by 60 m tract of land. The elevations were obtained by the grid method using 10 - m squares. Point A – 1 is located at the northwest corner of the lot and point G– 6 at the southeast corner. All elevations are in meters. Construct a contour map using any horizontal scale with a contour interval of 20 meters. The proportional spacing of contour lines must only be determined analytically. POINT 1 3 4 6 A 1522.82 1559.25 1485.10 1413.45 1362.12 1290.56 B 1440.00 1441.32 1462.38 1451.65 1391.05 1340.00 1395.45 1425.68 1506.44 1480.37 1400.72 1371.58 D 1409.56 1453.68 1545.15 1460.00 1410.28 1393.19 E 1436.73 1479.15 1495.65 1415.30 1434.05 1430.00 F 1470.35 1520.44 1490.68 1465.40 1452.98 1458.16 G 1545.25 1565.00 1519.50 1490.23 1475.10 1470.75
The accompanying tabulation gives elevations of points over the area of a 50 m by 60 m tract of land. The elevations were obtained by the grid method using 10 - m squares. Point A – 1 is located at the northwest corner of the lot and point G– 6 at the southeast corner. All elevations are in meters. Construct a contour map using any horizontal scale with a contour interval of 20 meters. The proportional spacing of contour lines must only be determined analytically. POINT 1 3 4 6 A 1522.82 1559.25 1485.10 1413.45 1362.12 1290.56 B 1440.00 1441.32 1462.38 1451.65 1391.05 1340.00 1395.45 1425.68 1506.44 1480.37 1400.72 1371.58 D 1409.56 1453.68 1545.15 1460.00 1410.28 1393.19 E 1436.73 1479.15 1495.65 1415.30 1434.05 1430.00 F 1470.35 1520.44 1490.68 1465.40 1452.98 1458.16 G 1545.25 1565.00 1519.50 1490.23 1475.10 1470.75
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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