A daim duab peb sab uas nws tag nrho peb sab thiab sab hauv cov ces kaum sib npaug yog hu ua daim duab peb sab sib npaug. Rau ib daim duab peb sab kom sib npaug, qhov ntsuas ntawm tag nrho nws peb lub kaum sab hauv yuav tsum sib npaug li 60 degrees.
Dab tsi yog daim duab peb sab sib npaug?
Hauv geometry, ib qho daim duab peb sab sib npaug yog daim duab peb sab uas tag nrho peb sab muaj qhov ntev. Nyob rau hauv cov Euclidean geometry paub, ib daim duab peb sab equilateral kuj equiangular; uas yog, tag nrho peb lub kaum sab hauv kuj muaj kev sib koom ua ke thiab yog txhua 60 °.
Puas yog daim duab peb sab sib npaug ib txwm sib npaug?
Ib daim duab peb sab sib npaug yog daim duab peb sab uas nws ob sab sib npaug. … Yog li ntawd, txij li tag nrho peb sab ntawm daim duab peb sab sib npaug sib npaug, tag nrho peb lub kaum sab xis sib npaug, ib yam nkaus. Li no, txhua daim duab peb sab sib npaug kuj yog qhov sib npaug.
Dab tsi yog qhov sib txawv ntawm daim duab peb sab thiab equiangular?
Yog li ntawd, yog tias tag nrho ntawm 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.
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˚.
