Okuqukethwe
Lokhu kushicilelwa kwethula amafomula angasetshenziswa ukuthola iradiyasi yebhola (indilinga) ebhalwe kuyiphiramidi evamile: unxantathu, u-quadrangular, i-hexagonal kanye ne-tetrahedron.
Okuqukethwe
Amafomula wokubala irediyasi yebhola (i-sphere)
Ulwazi olungezansi lusebenza kuphela ku-. Ifomula yokuthola irediyasi incike ohlotsheni lwesibalo, cabanga ngezinketho ezivame kakhulu.
Iphiramidi engunxantathu evamile
Esithombeni:
- a – unqenqema lwesisekelo sephiramidi, okungukuthi amasegimenti alinganayo AB, AC и BC;
- DE – ukuphakama kwephiramidi (h).
Uma amanani alawa manani aziwa, thola irediyasi (r) ibhola/i-sphere ebhaliwe inganikezwa ngefomula:
Ikesi elikhethekile lephiramidi elingunxantathu elivamile lilungile. Kuye, ifomula yokuthola irediyasi imi kanje:
Iphiramidi eyi-quadrangular evamile
Esithombeni:
- a – umphetho wesisekelo sephiramidi, okungukuthi AB, BC, CD и AD;
- EF – ukuphakama kwephiramidi (h).
Ububanzi (r) ibhola/indilinga ebhaliwe ibalwa kanje:
Iphiramidi ene-hexagonal evamile
Esithombeni:
- a – umphetho wesisekelo sephiramidi, okungukuthi AB, BC, CD, DE, EF, OF;
- GL – ukuphakama kwephiramidi (h).
Ububanzi (r) ibhola/indilinga ebhaliwe ibalwa ngefomula:
