In $($Figure $1),$ the elevations of stations AA and BB are $211\mathrm{.}10$ ftft and $208\mathrm{.}53$ ftft$,$ respectively. Instrument heights hiAhiA and hiBhiB are both $5\mathrm{.}80$ ftft$.$

Figure

$1$ of $1$

Part A

What is the average elevation of point PP if the other field observations are

AB$=142\mathrm{.}06$ftAB$=142\mathrm{.}06$ft

A$=501122$B$=510608$A$=501122$B$=510608$

v$1=363359$v$2=372646$v$1=363359$v$2=372646?$