Surveying
Pick up the correct statement for horizontal photographs.

The lines parallel to the negative plane are projected as parallel lines
All listed here
The two sides of a road meet at the vanishing point
Parallel lines do not appear parallel in central projection

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Surveying
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

By adding their longitudes if places are in the different hemispheres
By subtracting their longitudes if places are in the same hemisphere
All of these
By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres

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