Final answer:
Without additional context, it's challenging to provide a specific answer. The question appears to revolve around mathematics, including concepts of a trapezoid, trigonometry, the Pythagorean theorem, and the quadratic formula.
Step-by-step explanation:
The question pertains to a mathematical concept involving a trapezoid where the lengths of the parallel sides are given, and trigonometry might be needed to calculate certain unknowns. The data provided is incomplete and seems disjointed, making it difficult to provide a clear answer without additional information or clarification on the variables involved. However, if we interpret 'pq = 4rs' as a ratio and 'pq = 18.4' as a measurement, it suggests that the lengths of sides pq and rs of the trapezoid have a ratio of 1:4 and side pq measures 18.4 units, respectively.
Further discussion about trapezoids, the use of trigonometry to find unknown angles or sides, and the Pythagorean theorem to calculate the resultants could be provided with more context.
The quadratic equation and its solutions using the quadratic formula are also mentioned, indicating that these concepts might be relevant for solving problems related to the information given.