Applying the tangent ratio, the height, in feet, of the lamppost is calculated as: D. 10(tan50°)
Tangent ratio, is, tan ∅ = opposite side / adjacent side of the right triangle.
Given the following:
∅ = 50°
Opposite side = AB (height) = ?
Adjacent side = 10 feet
Apply the tangent ratio:
tan 50 = AB/10
AB = 10(tan50°)
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