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Trigonometry

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You are flying a kite while standing 60 ft from a fence. If the kite string makes a 40 degree angle with the ground, how much string, in feet, is let out when the kite is directly above the fence?

  • Trigonometry -

    Make a diagram of the right-angled triangle to see that
    tan 40° =height/60
    height = 60sin40°
    = ...

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