math
posted by jonathan on .
the Angle of Elevation From a Ship to the Top of a Lighthouse on the Shore is 18 Degrees. If the Light House is 20 Meters Tall and at Sea Level How Far is the Ship From the Shore to the Nearest Meter..

tan(x)=opposite over hypotenuse
x=18°
opposite=20m
tan(18°)=20m/hypotenuse
hypotenuse = 20m/tan(18°)
Can you take it from here?