Compare the scales of photography for the area recorded and the strip widths given by cameras A and B at the same flying heights.<image 1>How many photographs would be taken by the camera A in covering a strip 16 km long at a flying height of 1350 m? The longitudinal overlap is 60%.
['35.567 $\\approx$ 36', '36.567 $\\approx$ 37', '34.567 $\\approx$ 35', '37.567 $\\approx$ 38']