determine the difference of elevation of points A and B
a. 6.124m
b.7.053m
c.5.386m
d. 4.925m
Extracted text: A transit with an internal focusing telescope and with a stadia interval factor of 100 was set at point C on the line between points A and B. The stadia readings observed are shown in the table below.
Extracted text: Position of Vertical Hair Readings (m) Rod Angle + 4° 40' Upper 1.21 Middle Lower A 1.51 1.81 B -4° 40' 1.00 1.31 1.62