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The horizontal distance between the lighthouse and the shore is 896 feet.
Trigonometric ratio is used to show the relationship between the sides and the angles of a right angled triangle.
The angle of elevation is 7°. Let d represent the horizontal distance from the lighthouse and the shore. Hence:
tan(7) = 110/d
d = 110 / tan(7)
d = 896 feet
The horizontal distance between the lighthouse and the shore is 896 feet.
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