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Mathematics and culture go hand in hand. One example is the tongkonan, a traditional Tana Toraja house with some mathematical components. Apart from containing a mathematical component, it also has historical roots so it is more than just mathematics. Tana Toraja's heritage is closely linked to traditional dwellings, or tongkonan. This research aims to convey mathematical concepts such as the geometry found in tongkonan traditional houses and the history they carry, as well as finding out the meaning of the carvings on Tana Toraja traditional houses. This research uses a qualitative research methodology with an ethnographic approach. Data from observations, documentation, interviews and literature reviews were used as data sources in this research. Research findings show that several mathematical concepts such as triangles, blocks and cylinders, which have never been explored but are widely known, are found in the Tana Toraja Tongkonan traditional house.