Dab tsi yog 4d pyramid hu ua?
Dab tsi yog 4d pyramid hu ua?

Video: Dab tsi yog 4d pyramid hu ua?

Video: Dab tsi yog 4d pyramid hu ua?
Video: Trinary Time Capsule 2024, Hlis ntuj nqeg
Anonim

Lub pentachoron yog tus 4D sib npaug ntawm tetrahedron. Nws kuj yog lub npe hu ua lub 5-cell vim nws yog ua los ntawm 5 tetrahedral hlwb. Lwm tus npe vim nws yog 4D simplex, ua hu ua vim hais tias nws yog qhov yooj yim tshaj plaws polychoron uas nyob ze rau qhov tsis yog xoom 4D ntim. Nws yog cov duab ntawm Pento's pyramid hauv Legend of the Pyramid.

Kuj nug, 4d daim duab peb sab hu ua dab tsi?

Nws kuj yog lub npe hu ua ib C5, pentachoron, pentatope, pentahedroid, lossis tetrahedral pyramid. Nws yog 4-simplex (Coxeter's. polytope), qhov yooj yim tshaj plaws tau convex li niaj zaus 4-polytope (plaub-dimensional analogue ntawm Platonic khoom), thiab yog analogous rau tetrahedron nyob rau hauv peb qhov ntev thiab cov daim duab peb sab hauv ob qhov loj me.

Ib yam li ntawd, 3 sab pyramid hu ua dab tsi? A« peb sab pyramid yog hu ua ib tetrahedron. Nws muaj plaub lub ntsej muag ( 3 sab pyramid + base)

Tsis tas li ntawd, 4d duab yog dab tsi?

Tesseract: A 4D Lub voos xwmfab Cias muab tso, tesseract yog lub voos xwmfab hauv 4-dimensional qhov chaw. Koj tuaj yeem hais tias nws yog 4D analogue ntawm kub. Nws yog ib 4D puab qhov twg txhua lub ntsej muag yog lub voos xwmfab. Tesseract yog ib yam khoom hauv 4 qhov ntev.

Dab tsi yog cov npoo ntawm lub pyramid?

4 Sab ntsej muag yog daim duab peb sab. Lub hauv paus yog Square. Nws muaj 5 Vertices (kab cov ntsiab lus) Nws muaj 8 Ntug.

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