SHAKL.UZ

Hajmli shakl

Yarim shar

Hajmli shakllar

Ta'rif

Yarim shar — sharning tekislik bilan ikkiga bo'lingan yarmi. Yassi asosi doira shaklida bo'lib, yuzi πr². Yarim sharning to'liq sirt yuzasi egri sirt va doira asosi yig'indisiga teng: S = 2πr² + πr² = 3πr². Gumbazlar va kosalar yarim shar shakliga yaqin.

Formula

Hajm: V = (2/3)πr³ | To'liq sirt yuzasi: S = 3πr² | Egri sirt yuzasi: S_egri = 2πr²

Xossalar

Sharning yarmi. Yassi asos — doira (πr²). Egri sirt — 2πr².