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21 October, 13:10

From a distance 42 feet from the base of the building the angle of elevation of the top of the building a 67 degrees estimate the height of the building to the nearest Foot

A. 18ft

B. 16ft

C. 39ft

D. 99ft

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Answers (1)
  1. 21 October, 13:28
    0
    Tanα=h/d

    h=dtanα, we are told that d=42ft and α=67° so

    h=42tan67 ft

    h≈99 ft (to nearest foot)
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