A daidai Tee, in ba haka ba ana kiransa madaidaiciya tee, yana nufin reshe diamita na wannan tee iri ɗaya ne tare da babban bututu na wannan tee.
An bayyana wani bututu mai "daidai" lokacin da ya ɗauki girman a gudu da reshen ɓangare suna da diamita iri ɗaya. Tee daidai Tee shine, sabili da haka, ana amfani da shi don haɗa bututu biyu na diamita guda ɗaya.