Dab tsi yog qhov txawv ntawm cuboid thiab duab plaub?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Qhov yooj yim qhov sib txawv ntawm ib duab plaub thiab a kub yog tias ib qho yog 2D duab thiab lwm qhov yog 3Dshape. Qhov yooj yim qhov sib txawv ntawm kub a kub yog tias ib lub voos xwmfab muaj qhov sib npaug ntawm qhov ntev, qhov siab thiab qhov dav whereas hauv kub peb cov no yuav tsis zoo ib yam.

Ib yam li ntawd, ib daim duab plaub zoo ib yam li lub cuboid?

Cuboid muaj ib tug square cross sectional cheeb tsam thiab alength tej zaum txawv ntawm sab ntawm tus ntoo khaub lig seem. Nws muaj 8 vertices, 12 sab, 6 lub ntsej muag. Nws zoo li lub voos xwmfab, tab sis ib qhov loj me txawv ntawm qhov ob. Ib txoj cai duab plaub primis tib yam li cuboid.

Tom qab ntawd, lo lus nug yog, qhov cuboid hauv lej yog dab tsi? A kub yog peb-dimensional duab nrog alength, dav, thiab ib qhov siab. Cov kub puab muaj rau sab hu ua ntsej muag. Txhua lub ntsej muag ntawm a kub yog ib daim duab plaub, thiab allof a kub cov ces kaum (hu ua vertices) yog 90-degreeangles. Thaum kawg, a kub muaj cov duab ntawm lub thawv rectangular.

Hauv qhov no, qhov txawv ntawm lub cuboid thiab lub voos xwmfab yog dab tsi?

Lub xwb qhov sib txawv ntawm kub thiab kub yog cov duab ntawm rau lub ntsej muag. Txhua lub ntsej muag ntawm a kub yog square, thiab tag nrho cov squares yog sib npaug. Txhua lub ntsej muag ntawm a kub yog ib daim duab plaub. Yam tsawg kawg plaub ntawm cov duab plaub no yuav zoo ib yam.

Dab tsi yog qhov tshwj xeeb ntawm lub voos xwmfab?

A kub yog a tshwj xeeb geometric duab uas ntog rau hauv ntau pawg xws li platonic solids thiab regularhexahedrons. A kub muaj qhov ntim loj tshaj plaws ntawm tag nrho cov cuboids nrog rau qee qhov chaw. Feem ntau cov tsuav yog kub zoo li tus, muaj cov lej 1 txog 6 ntawm lub ntsej muag sib txawv.