tan(35) = 2800/x

xtan(35) = 2800

x = 3998.81 m or 3999 m answer//

Using the tangent ratio for a right angle triangle it is: 2800/tan(35) = 3,998.814419 or about 4,000 m

Horizontal distance D from buoy to ship is given by 2800/D = tan 35°, ie., D = [2800/tan35°](m)

= 3998.814419(m), approx = 4000(m).

Let x be the horizontal distance from the buoy to the ship.

(2800 m)/x = tan(35 deg) =>

x = 4.0 km