Ịchọta radius/mpaghara/olu nke sphere (bọọlụ) edere gburugburu cylinder

N'akwụkwọ a, anyị ga-atụle otu esi achọta radius nke sphere nke gbara gburugburu cylinder ziri ezi, yana akuku elu ya na olu nke bọọlụ ejiri akụkụ a gbachie.

Ịchọta radius nke sphere/ball

Banyere onye ọ bụla nwere ike ịkọwa (ma ọ bụ na okwu ndị ọzọ, dabara cylinder n'ime bọọlụ) - mana naanị otu.

• Ebe etiti nke oghere dị otú ahụ ga-abụ etiti cylinder, n'ọnọdụ anyị ọ bụ isi O.
• O₁ и O₂ bụ ebe ntọala nke cylinder.
• O₁O₂ – cylinder elu (H).
• OO₁ = OO₂ = ^h/₂.

Enwere ike ịhụ na radius nke gburugburu gburugburu (Ị bụ), ọkara ịdị elu nke cylinder (OO₁)  na radius nke isi ya (O₁E) mepụta triangle ziri ezi OO₁E.

N'iji nke a, anyị nwere ike ịhụ hypotenuse nke triangle a, nke bụkwa radius nke gburugburu nke edere banyere cylinder nyere:

Ịmara radius nke gburugburu, ị nwere ike gbakọọ mpaghara ahụ (S) elu ya na olu ya (V) Ọgbara gbara okirikiri:

• S = 4 ⋅ π ⋅ R²
• S= ⁴/₃ ⋅ π⋅ R³

Cheta na: π gbara okirikiri nhata 3,14.