Nyob rau hauv dav hlau Euclidean geometry, ib lub rhombus yog plaub sab uas plaub sab tag nrho muaj qhov ntev. Lwm lub npe yog equilateral quadrilateral, vim equilateral txhais tau hais tias tag nrho cov ntawm nws sab yog sib npaug zos nyob rau hauv ntev.
rhombus txhais li cas hauv lej?
: a parallelogram nrog plaub sab sib npaug thiab qee zaum ib qho tsis muaj kaum sab xis.
piv txwv ntawm rhombus yog dab tsi?
Ib lub rhombus yog lub pob zeb diamond-shaped quadrilateral uas muaj plaub sab sib npaug. Peb tuaj yeem pom cov duab zoo li rhombus hauv peb lub neej niaj hnub. Qee qhov piv txwv ntawm lub neej tiag tiag ntawm lub rhombus muaj nyob rau hauv daim duab hauv qab no: pob zeb diamond, kite, thiab qhwv ntsej, thiab lwm yam.
rhombus txhais li cas rau menyuam yaus?
Ib lub rhombus yog tshwj xeeb ntawm plaub-sided daim duabhu ua quadrilateral. Lub rhombus yuav tsum muaj plaub sab sib npaug, rov qab sab sib npaug thiab cov kaum sab xis sib npaug.
Lub ntsiab lus ntawm rhombus yog dab tsi?
Ib lub rhombus yog ib qho parallelogram nrog plaub sab sib npaug thiab sib npaug sib npaug. … Lub rhombus tau txais nws lub npe los ntawm Greek rhómbos, uas txhais tau tias "a spinning top." Lo lus no piav txog tus "bullroarer," ib yam khoom uas tau muab khi rau txoj hlua thiab spun ncig, ua suab nrov.
