Question

4. The method of plane surveying can be used when the extent of area is less than​

Answer 1

Answer:

when the extent area less than 250 aq. Km

Answer 2

Answer:

The method of plane surveying can be used when the extent of the area is less than 250 sq. km.

Explanation:

• Plane surveying is the method used for surveying the land where the surface of the earth is considered to be the plane surface.
• It is used in small projects where the land area is less than 250 sq. km.
• The composition of the land and the topography is calculated using this method.