This problem likely relates to the power of a point theorem or intersecting secants theorem. The external point and the segments of the secant lines are crucial. If the lengths of some segments were provided, and the question asked for another length, the theorem could be applied.
For example, if the external point is P, and secants intersect the circle at points A, B, and C, D, the theorem states PA * PB = PC * PD. If one of the lines is tangent at point T, then PT^2 = PA * PB.
Without specific numerical values and a clear question, a definitive answer cannot be provided. Please provide the question for problem 2.