Ukuthola irediyasi/indawo/ivolumu yendilinga (ibhola) ezungezwe isilinda

Kulolu shicilelo, sizocubungula indlela yokuthola irediyasi yendilinga ezungezwe isilinda esingakwesokudla, kanye nendawo yayo engaphezulu kanye nevolumu yebhola eboshwe yilo mkhakha.

Ukuthola indawo engaba yindilinga/ibhola

Cishe noma iyiphi ingachazwa (noma ngamanye amazwi, faka isilinda ebholeni) - kodwa eyodwa kuphela.

• Isikhungo se-sphere enjalo sizoba yisikhungo se-cylinder, kithi siyiphuzu O.
• O₁ и O₂ ziyizikhungo zezisekelo ze-cylinder.
• O₁O₂ - ukuphakama kwesilinda (H).
• OO₁ = OO₂ = ^h/₂.

Kuyabonakala ukuthi i-radius ye-circumscribed sphere (UNGU), isigamu sobude besilinda (OO₁)  kanye ne-radius yesisekelo salo (O₁E) yakha unxantathu ongakwesokudla OO₁E.

Ngokusebenzisa lokhu singathola i-hypotenuse yalo nxantathu, okuphinde kube yirediyasi yendilinga ezungezwe mayelana nesilinda esinikeziwe:

Ukwazi i-radius ye-sphere, ungakwazi ukubala indawo (S) ubuso nomthamo wayo (V) Indilinga eboshwe yindilinga:

• S = 4 ⋅ π ⋅ R²
• S= ⁴/₃ ⋅ π ⋅ R³

Qaphela: π ukuzungeza kulingana no-3,14.