Surveying
Pick up the correct statement for horizontal photographs.

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

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Surveying
For mapping any country

Geodetic triangulation of greatest possible sides and accuracy is carried out
Primary triangles are broken down into secondary triangles of somewhat lesser accuracy
Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys
All listed here

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