question_answer

Let \[\overrightarrow{OA}=\overrightarrow{a},\,\,\overrightarrow{OB}=10\,\overrightarrow{a}+2\,\vec{b}\] and \[\overrightarrow{OC}=\vec{b}\] where A and C are non-collinear points. Let p denote the area of the quadrilateral OABC, and let q denote the area of the parallelogram with OA and OC as adjacent sides. If \[p=kq,\] then find value of k.

Answer:

6.00