Warm-up

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Tanga 3 marta tashlanganda 1 marta raqam tushish hodisasining ehtimolini toping.

Paraxod daryo oqimi bo`ylab 48 km va oqimga qarshi shuncha masofani 5 soatda bosib o`tdi. Agar daryo oqimining tezligi soatiga 4 km bo`lsa, paraxodning turg`un (oqmas) suvdagi tezligini toping.

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x burchak necha gradus?

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ABCD - to`g`ri to`rtburchak. A - chorak aylana markazi. Agar FC=9 va DC=8 bo`lsa, ED=x ni toping.

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