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trigonometry

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a submarine at the surface of the ocean makes an emergency dive, its path making an angle of 21 degree with the surface. if it goes 300m long its download path, how deep will it be? what horizontal distance is it from its starting point?

  • trigonometry - ,

    simple sine and cosine ratio problem

    sin 21 = depth/300
    depth = 300sin21°
    = 10.75 m

    cos 21 = horizontal distance/ 300
    hd = 300cos21 = 280.07 m

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