teb. Cov kab pheeb ces kaum yog sib npaug tsuas yog nyob rau hauv rooj plaub tshwj xeeb ntawm trapezium uas hu ua trapezoid (los yog isosceles trapezium). Tsis tas li ntawd, cov yam ntxwv ntawm trapezoid yog tias cov kab pheeb ces kaum tshwm sim sib npaug. Nws tsis yog qhov tsim nyog uas kab pheeb ces kaum ntawm txhua hom trapezium tig tawm kom sib npaug.
Dab tsi yog cov cuab yeej ntawm kab pheeb ces kaum ntawm trapezium?
Cov kab pheeb ces kaum ntawm ib txwm trapezium bisect ib leeg Qhov ntev ntawm nruab nrab ntu yog sib npaug rau ib nrab ntawm cov lej ntawm qhov sib npaug, hauv lub trapezium. Ob khub ntawm cov ces kaum uas nyob ib sab ntawm lub trapezium tsim ntawm cov kab sib txuas thiab ib qho ntawm cov tsis sib xws, ntxiv txog 180 degrees.
Koj ua pov thawj li cas tias kab pheeb ces kaum ntawm lub trapezium sib npaug?
Ob sab tsis sib luag ntawm lub trapezoid yuav tsum sib haum. Cov kab pheeb ces kaum yuav tsum tsim ob daim duab peb sab sib tshooj uas muab lub hauv paus ua ib sab. Lub lub kaum sab xis ntawm lub trapezoid yog sib npaug. Ob kab pheeb ces kaum yog congruent los ntawm Corresponding Parts.
Puas yog trapezium diagonals perpendicular?
kab pheeb ces kaum ntawm lub trapezoid yog perpendicular thiab muaj qhov ntev 8 thiab 10.
Kev sib raug zoo ntawm kab pheeb ces kaum ntawm lub trapezium yog dab tsi?
Lub hauv paus ntawm lub trapezium yog sib npaug rau ib leeg. Qhov ntev ntawm ob kab pheeb ces kaum sib npaug. Cov kab pheeb ces kaum ntawm lub trapezium yeej ib txwm sib tshuam. Cov kaum sab hauv uas nyob ib sab suav txog 180 °.
