Ib qhov peb-dimensional orthotope tseem hu ua txoj cai rectangular prism, rectangular cuboid, lossis rectangular parallelepiped. Cov ntaub ntawv tshwj xeeb ntawm n-dimensional orthotope qhov twg tag nrho cov npoo muaj qhov sib npaug ntev yog n-cube.
Lub thawv duab plaub hu ua dab tsi?
Thaum cov ntaub ntawv lej hais txog ib qho polyhedron li ib qho cuboid, lwm qhov chaw siv "cuboid" los hais txog cov duab ntawm hom no uas txhua lub ntsej muag yog duab plaub. (thiab yog li txhua khub ntawm lub ntsej muag uas nyob ib sab ntsib hauv lub kaum sab xis); Qhov kev txwv ntau dua ntawm cuboid no tseem hu ua lub voos xwmfab, txoj cai…
Puas yog daim duab plaub 3D?
2D duab suav nrog cov duab plaub, plaub fab, lub voj voog thiab daim duab peb sab. 3D cov duab suav nrog lub voos xwmfab, cuboids, pyramids thiab spheres.
Qhov twg tsis yog 3D duab?
Square tsis yog daim duab 3D.
Dab tsi yog 3D?
3D duab yog cov duab nrog peb qhov ntev, xws li qhov dav, qhov siab thiab qhov tob. Ib qho piv txwv ntawm 3D duab yog prism lossis ib tus kheej.
