X 2 4 3 8 4 12 5 16 Scale (kilometers) Hints: This volcanic feature has a very distinctive internal structure Note the concave-up profile of its flanks The vertical scale is the same as the horizontal scale (no vertical exaggeration) Topographic profile for questions 17, 18, and 19. Question 17 Referring to the topographic profile of the volcanic feature in the figure above; measure with your protractor the slope angle at point X. The slope angle at X is a. just under 1 degree. b. just under 5 degrees. c. just under 30 degrees. d. just under 45 degrees. e. just under 60 degrees