50 sm diametrli va devor qalinligi 4 mm bo'lgan silindrning yonish kamerasida ishlatiladigan po'latning massasini hisoblash uchun men avval silindrning hajmini hisoblashim kerak. Silindrning hajmini quyidagi formula yordamida hisoblash mumkin: V = πr2h bu erda V silindrning hajmi, r silindrning radiusi (bu diametrining yarmi) va h silindrning balandligi. Ushbu holatda radius 25 sm (50 sm diametri / 2) va balandligi noma'lum. Shuning uchun silindrning hajmi: V = π ((25cm) 2 soat, Keyin men silindrda ishlatiladigan po'latning hajmini hisoblashim kerak. Silindr devorining qalinligi 4 sm (0,4 sm), shuning uchun silindrning ichki hajmini hisoblash kerak (r1) r: r1 r = r -
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