Eksplorasi Etnomatematika Pada Masjid Al-Husna Pondok Dalem Semboro di Tinjau Dari Segi Geometri

Ethnomathematics is learning mathematics that is integrated into the culture of society. This study aims to explore and describe the mathematical geometric objects that exist in the building design of the Al-Husna Pondok Dalem Semboro mosque which can be utilized in learning mathematics. This research is a type of qualitative ethnographic research. The instrument in this research is the human instrument, namely the researcher as the main instrument that cannot be replaced by other people. Thus, the researcher acts as a data collector through observation, interviews, and documentation. The data analysis technique consists of three stages, namely: data reduction, data presentation, and conclusion. The results of the study show that the architectural form of the Al-Husna Pondok Dalem Semboro Mosque has ethnomathematics related to the mathematical concept of geometric material including triangles, hexagons, squares, rectangles, circles, rhombuses, beams, tubes, spheres, cones, pyramids, congruence and congruence. Keywords: ethnomathematics, Al-Husna Mosque Pondok Dalem Semboro, geometr