This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
This problem involves vector geometry and properties of triangles. Given the information, we need to express the angles and areas in terms of the given vectors or lengths. However, without a specific angle for AOB or specific lengths for a and b, it is not possible to find numerical values for the angles in part (a) or the areas in part (b). The question asks for "the size of angle", implying a numerical value. This suggests that either there is missing information in the problem statement (e.g., AOB = 90^ or 60^, or specific values for a and b), or the question expects the angles to be expressed in terms of AOB. Given the typical context of such problems