2) A transit with a stadia interval factor of K = 100 and C= 0.381 was set at point C on the line between points A and B, and the following stadia readings were observed: Position of Rod Rod held at A Rod held at B Hair Readings(m) Upper Middle Lower 1.450 1.325 1.200 15.58 -8.13 1.850 1.806 1.762 Vertical angle() Determine the following: a) length of line AB b)difference in elevation between points A and B

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State Plane Coordinate Systems

The state plane coordinate system (SPCS or SPS) is a collection of 124 coordinate systems or geographic zones prepared for particular regions of the U.S. Every state consists of one or more than one state plane zone, the boundaries of which generally follow the county lines. Inside the U.S., there are 110 zones in total, 10 more zones in Alaska, 5 in Hawaii, and 1 for Puerto Rico and US Virgin islands. The system is extensively used for geospatial and geographic data assembling by the state and local governments.