1. Javobi Y e ch i sh: S = 2 formulaga ko’ra S = 2=(sm2)
1. Javobi Y e ch i sh: S = 2 formulaga ko’ra S = 2=(sm2)
J a v o b: S = sm2 .
2. Javobi Yechish. S = 2 formulada, S=12,56; =3,14 desak, 12,56=3,14* r2, bundan r2=4. Qanday sonni o’z-o’ziga ko’paytirilsa, 4 chiqadi? r * r =2 * 2, demak, r = 2 (sm). Javob: r = 2 sm.
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314 – masala 315 – masala
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