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A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket from telescope B at he moment when both tracking stations are directly east of the rocket telescope A reports an angle of elevation of 29 degree and telescppe B reports an angle of elevation of 49 degrees

  • Math -

    Make a diagram, label the position of the rocket R.
    We can use the Sine Law
    angle ABP = 131º
    angle A = 29º and
    angle ARB = 20º
    BP/sin29 = 1.9/sin20
    bP = 2.69

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