The circumference of a 19 foot diameter circle is: 59.7 feet.
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45.53 yards
19/4π
19 x pi 59.690
foot
They both have the same tangent ratio so let the height of the lighthouse be x and change all units into feet: x/216 = 32/19 Multiply both sides by 216: x = 6912/19 x = 363.7894737 feet