For finding the elevation of point C the Azimuth Angle from poit A to C is measured as 76deg ?15'00". The height of the instrument during this measurement was 1.60m From the same setup from point A, the zenith angle and slope distance toward point B are measured as 83deg 32'30" and 186.23m respectively, while the elevation of point B is 315.34m AMSL. The Height of the target at B was set at 2.00m the horizontal angles BAC and CBA are measured as 60deg 37'54" and 81deg 59'06"
Determine:
a)the horizontal distance AB and elevation of point A
b)the horizontal distance AC
c)and Elevation of point C