Individual #triangulation.trigonometry  a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation
  >part of:  #trigonometry__trig  the mathematics of triangles and trigonometric functions
     >part of:  #pure_mathematics  the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness
        >part of:  #mathematics__math__maths__math  a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement

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