Question-

The distance covered by an aerial photograph is determined by both the focal length of the camera and the tilt of the camera. Though the tilt is usually small, both archaeological and Canadian photographs often use larger tilts. A camera lens with a 12-in. focal length will have an angular coverage of 60°. If an aerial photograph is taken with this camera tilted angle­­A=35° at an altitude 5000ft., calculate for the ground distance of the angular coverage 60°.