Following figure shown a page in a field book of cross staff survey. Calculate the area enlarged between the stations:

Following figure shown a page in a field book of cross staff survey. Calculate the area enlarged between the stations:   1. Area of triangle AHD = 1 / 2 x 30 x 22.50 = 337.50 m² 2. Area of Trapezium HDFJ = ( 88.0-30.0) = ( 22.50+33.80/ 2 ) = 1632 . 70m² 3. … Read more