Square bututu sunan ne ga square bututu da rectangular bututu, wato, karfe bututu tare da daidai da kuma m gefen tsawo. An yi na birgima tsiri karfe bayan aiwatar jiyya. Gabaɗaya, karfen tsiri yana buɗewa, an daidaita shi, an gurɓata shi da walda don samar da bututu mai zagaye, sannan a mirgina cikin bututu mai murabba'in f...
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