Piv txwv li, equilateral daim duab peb sab muaj tag nrho cov congruent sab - uas yog lub ntsiab txhais ntawm equilateral. Tag nrho lawv cov ces kaum yog tib yam nkaus, uas ua rau lawv sib npaug.
Koj puas muaj qhov sib npaug tab sis tsis sib npaug?
Thaum daim duab peb sab, ua equiangular xav kom daim duab peb sab kuj sib npaug.. Yog li, tsis yog txhua qhov sib npaug plaub npaug yog qhov sib npaugthiab tsis yog txhua yam.
Yuav ua li cas sib npaug thiab sib npaug li cas?
Yog li ntawd, yog tias tag nrho cov sab ntawm lub polygon yog tib qhov ntev, lub polygon tau hais tias yog sib npaug, hos yog tias tag nrho cov kaum sab hauv ntawm lub polygon yog qhov sib npaug. tib qho kev ntsuas, tus polygon tau hais tias yog equiangular.
Puas yog daim duab peb sab sib npaug ib txwm sib npaug?
Ntawm no koj yuav kawm paub lub ntsiab lus ntawm daim duab peb sab sib npaug nrog rau ib qho tseem ceeb theorem txog daim duab peb sab: Daim duab peb sab sib npaug yog ib txwm sib npaug.
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm daim duab peb sab sib npaug thiab daim duab peb sab sib npaug?
Ib qho daim duab peb sab sib npaug muaj peb sab sib npaug, thiab nws zoo ib yam li daim duab peb sab sib npaug Hauv cov piv txwv tsis yog, tag nrho cov duab yog daim duab peb sab, tab sis tsis muaj leej twg. yog daim duab peb sab sib npaug vim tias: Hauv daim duab peb sab txoj cai, ib lub kaum sab hauv yog ntawm 90˚.
