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14. x+(x+3)·2=15,6 x=3,2 3,2; 6,2; 6,2.15. fuZesTan mdebare kuTxis biseqtrisa ferdis marTobulia, e.i. simaRlea, amitomfuZe ferdis tolia.+16. ∠ADB=180°–BAC + ABC +180BAC +` + j =+c -ABC .2 22α βa) 105°; b) 180c- + 2 ; g) 180180c- γ γc - = 90c+22 .17. ∠A=α; ∠ABD=90°-α; ∠C=180°–(α+β), ∠CBD=α+β–90°.18. BN+M ∠NBC=∠A+∠C=2∠C, ∠MBC= NBC =∠C, ∠MBC da ∠C2warmoadgenen S. jv. md. kuTxeebs BM da AC paralelurwrfeebsa da BC mkveTisaTvis. e.i. MB||AC.A))CBAC19. AC=200m; CB=800m. Tavisi siCqariT 20 wT-Si giorgis 50·20=1000m-is anu 1 km-is gacurva SEuZlia. samkuTxedis utolobis TanaxmadAB

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