Three wells are located in an x$,$y plane at the following coordinates: well #$1=(0,0)$ m$,$ well

#$2=(80,-80)$ m and well #$3=(80,80)$ m$.$ The head at each well referenced to a common

datum, is as follows: well #$1=100$ m$,$ well #$2=108$ m and well # $3=102$ m$.$ The scale is

$1$ cm $=30$ m$.$ Sketch the well field and determine the hydraulic gradient and direction of

flow. Please show explanation