A stainless steel luminaire, or light fitting, is to be designed for a new shopping centre. The elevation of the new fitting is shown below. The top of the fitting is a dome in the shape of a segment...

A stainless steel luminaire, or light fitting, is to be designed for a new shopping centre. The elevation of the new fitting is shown below. The top of the fitting is a dome in the shape of a segment of a circle.

For costing purposes and fabrication processes, the building services engineer needs some information about the proposed fitting. Provide calculations to find:

• The width (W) of the segmental dome

• The cross-sectional area (A) of the segmental dome.