1. Sharning katta doirasi yuzi 16 ga tong. Shar sirtining yuzini toping. 2. Sharga tashqi chizilgan kubning hajmi 8 ga teng. Sharning radiusini toping. 3. O'q kesimi kvadratdan iborat silindrga ichki chizilgan sharning hajmi \( 9 \pi / 16 \mathrm{ga} \) teng. Silindrning yon sirtini toping. 4. Sharga ichki chizilgan konusning asosi sharning katta doirasiga teng. Konus o'q kesimining yuzi 9 ga teng. Sharning hajmini toping. 5. Sfera sirtining yuzini yozing.
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Deylik, birinchi savolimizda katta doira yuzi berilgan bo'lsa, shunday bo'ladi: sferaning sirtini topish uchun 4πR² formulasi ishlatiladi. Katta doira yuzi 16 ga teng bo'lsa, R² = 16/π ekan, radius R = √(16/π) = 4/√π. Ikkinchi savolda esa, sharga tashqi chizilgan kubning hajmi 8 ga teng bo'lsa, kubning bir tomonini 2 deb faraz qilsak, sharning radiusi R = 2√3/3 = 2/√3. Shunday qilib, sharning radiusini topish uchun chuqur matematik formulalardan foydalanishimiz mumkin. Awọn иқтидор қилишилади: radiysni to'g'ri hisoblash va formulalarni muvaffaqiyatli qo'llash!