posted 3 weeks 19 hours ago.
SURVEYING- It is an old method of plotting points and measuring distance on the earth .It is an art. In survey we can measure horizontal and vertical angle and distance of any structures.For doing survey of any point we can use different instruments like theodolite ranging rods,autolevel etc.
There are two principles of survey on which it depends:
(1) always work whole to part
(2)connect a point by joining two points