1. The problem statement, all variables and given/known data (Reading topography). The figure above shows the topographical contour map of the Mount Saint Helens in Oregon State. Numbers on the contours indicate elevation in meters above sea level. (c) The horizontal distance on the map between points F and G is 50 meters. Assuming that the slope of the mounting between these two points remains constant calculate the actual terrestrial distance between them. (d) Find the slope itself (you may use a calculator to answer these questions). 2. Relevant equations 3. The attempt at a solution To me, this is a poorly written question. Perhaps someone here can help me understand? So, we see on the image here: That the distance between F and G is 50 meters in the horizontal direction. We also can conclude that there is some height difference of 250 meters. My initial plan was simply to make a right triangle with height = 250 m and horizontal distance = 50 and thus the hypotenuse (slope) would be sqrt(250^2+50^2). However, in part D it tells us to 'find the slope' so clearly I am not doing something right. Perhaps someone can help me understand what the question is asking? What is terrestrial distance? Is it simply 50+250=300m?