Petřín funicular
Detailed topographic map of the landscape near Petřín hill is given by
contour lines at every 1 meter.
1. Determine the numerical map scale 1 : m.
2. Estimate the true length of funicular portion f.
3. Estimate the average slope between elevations 230 m-250 m.
4. Construct cross profile p with appropriate exaggerated scale.