Question 1026554
*[illustration hill]

If my sketch is right


x/y = tan 7

y= x/tan 7


(x+14)/tan 35 = y


x/tan 7 = (x+14)/tan35

tan 35*x = tan7*x +tan 7*14

x(tan 35-tan7) = tan 7 * 14

x = 1.71/ (tan 35-tan 7)

x= 1.71/0.577

x= 2.96

Height of hill =( 14+2.96-1.73)

=15.23 

y= 2.96/tan 7

y = 24.10 horizontal distance


Check

y = 16.96/tan 35

=24.20