A mountain appears in overlapping vertical aerial photographs. Which of the following measurements could be made by use of the photographs?
A) exact altitudes
B) area
C) steepness of its slopes
D) contour lines
E) all of the above

Question

Quizplus · Accepted Answer

All of the above measurements could be made by use of overlapping vertical aerial photographs. Altitudes can be determined by using stereoscopic techniques to view the same point on the mountain from two different angles. Area can be calculated by measuring the extent of the mountain on the photographs and using scaling factors. Steepness of slopes can be evaluated by examining the vertical relief visible in the photographs, and contour lines can be drawn by connecting points of equal elevation on the aerial photographs.

A Mountain Appears in Overlapping Vertical Aerial Photographs