In this question use $g=9.8$ m s${}^{-2}$.

A particle $P$ of mass 10 kg is held in equilibrium by two light inextensible strings, $A$ and $B$, attached to two fixed points.

String $A$ makes an angle of $50°$ with the horizontal and string $B$ makes an angle of $35°$ with the horizontal, on the opposite side of the vertical through $P$, as shown in the diagram.