建模翻译The Art Gallery Security SystemAn art gallery is holding a special exhibition of small watercolors. The exhibition will be held in a rectangular room that is22 meters long and 20 meters wide with entrance and exit doors each 2 meters wide as shown below. Two securitycameras are fixed in corners of the room, with the resulting video being watched by an attendant from a remote controlroom. The security cameras give at any instant a “scan beam” of 30. They rotate backwards and forwar
