<![CDATA[The Baruga Adat of Lawela Village is a traditional building in the form of an open stilt house with a tiered roof that holds social, cultural, and mathematical value. This study explores the ethnomathematical elements of the Baruga Adat of Lawela Village and examines its symbolic meanings in relation to planar shapes. The study used a qualitative approach with an ethnographic design. Data were obtained through observation of the Baruga structure, interviews with traditional leaders and the Culture Office of South Buton Regency, and documentation in the form of photographs and field notes. Data analysis used data reduction, data display, and descriptive conclusion drawing. The results show that the Baruga Adat of Lawela Village contains various planar shapes, namely triangles, squares, rectangles, rhombuses, trapezoids, and parallelograms. These shapes not only demonstrate the application of geometric concepts in the building's structure but also carry symbolic meanings related to the community's worldview, such as the triangle, which symbolizes the three-layered cosmology of the world, the square, which reflects the four pillars of life, and the rectangle, which represents the deliberation space. These findings extend ethnomathematical studies of traditional buildings by revealing the relationships among geometric forms, spatial functions, and symbolic meanings within the cultural context of the Lawela Village community. Thus, the Baruga Adat of Lawela Village functions not only as a social and cultural center but also represents local mathematical knowledge that can be developed as a source of contextual mathematics learning while supporting the preservation of local culture.]]>
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