Generate a contour from the given grid elevations. 20m 18.5 23.5 21.6 25.5 43.5 23.7 30.5 45.5 53.8 1. If the contour interval is equal to 10m, how many contours with unique elevations are to be plotted? 2. If the contour interval is equal to 5m, how many contours with unique elevations are to be plotted? 3. Along the grid containing elevations 25.5m and 43.5m, what are the elevation of contours with 10-m contour interval? 13.5 35.2 51.2
1. If the contour interval is equal to 10m, how many contours with unique elevations are to be plotted?
2. If the contour interval is equal to 5m, how many contours with unique elevations are to be plotted?
3. Along the grid containing elevations 25.5m and 43.5m, what are the elevation of contours with 10-m contour interval?
4. Along the grid containing elevations 25.5m and 30.5m, what are elevation of contours with 10-m contour interval?
5. Measured within the segment containing elevations 13.5 and 21.6, the horizontal distance between 20-m elevation contour and elevation 13.5m is?
6. Measured within the segment containing elevations 25.5 and 43.5, the horizontal distance between 30-m elevation contour and elevation 25.5m is?
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