Are placed refers to the action of putting or positioning something in a specific place. To convey this action in a different way, one could use synonyms such as arranged, situated, fixed, installed, positioned, established, stationed, located, or allocated. Each of these words emphasizes the act of placement, but with a slightly different connotation. For instance, situated suggests a deliberate choice of location, while installed may imply a more permanent or technical placement. Regardless, using any of these synonyms in place of are placed will provide variety in language and help to avoid repetitive phrasing.