Representation of data — practice question

A beam $AB$ is uniform, has length $2\,\text{m}$ and weighs $70\,\text{N}$. It is hinged at $A$ to a fixed point on a vertical wall and stays in equilibrium because of a light inextensible rope. One end of the rope is fixed to the wall at a point $1.7\,\text{m}$ vertically above the hinge. The other end is fastened to the beam at a point $0.8\,\text{m}$ from $A$. The rope is perpendicular to $AB$. A load of weight $220\,\text{N}$ acts at $B$ (see diagram).