Physics - A person is standing at the edge of the water . . .?

Question

A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the per?

a link to the diagram here

http://edugen.wiley.com/edugen/courses/crs1507/art/qb/qu/c01/ch01p_18.gif

Answer 1

Radius of earth=6378100 meters

(R+h)^2=R^2+d^2

d=sqr((R+h)^2-R^2)

d=sqr((6378100+1.4)^2-(6378100)^2)

= 4225.95 m

4225.95 meters = 2.626 miles