Center:
Center is a point in space, which is at equal distance from all the others points in that space.
Subtract 76 on both sides:
2401 - 76 = 76 - 2x - 76
2325 = -2x
Divide both sides by -2:
-1162.5 = x
6/10 its adjacent over hypotenuse
The answer is C.
Because it is closest location relative to the sea!