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Pq bc - PowerPoint PPT Presentation

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????????????????. ???? ???. A. D. B. C. ?? ?????????????? , ??? BC=80cm ?? AD=60cm ???????????????????????? 2?1 ?????????? BC ???????? AB ? AC ??????????????. 60. E. P. Q. S. R. 80. A. 60. E. P. Q. D. B. C. S. R. 80. ?? ? PS=Xcm ?? PQ=2Xcm ?PQ?BC ??APQ??ABC

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222 views • 12 slides

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????????? 3 ?. B. D. A. C. ??. ????????? 3 ?. ?????? Rt?ABC ? ? CD?AB ? D ?????? AC ? 8cm ? BC ? 6cm ????????? BCD ???. ?? 1 ????????????????????. ?? 2 ?????????. AC = 8 BC = 6. ????. ???. ?? 3 ?????????????????. AC = 8 BC = 6. AB = 10. ?ABC??CBD. ????. ??????. AB = 10.

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457 views • 10 slides

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????? (2). 8. ?????? OABC ?????????? ,O(0,0),A(6,0), C(0,3). ?? Q ?? O ????? 1 ???????? OC ??? C ????? ????? P ?? A ????????? AO ? ?? O ?? . ??????????????????? . ?? P ?????? t ??? .(1) ?? t ?????? OP ? OQ ? (2) ? t=1 ???? 1 ??? OPQ ? PQ ???? O ???? CB ???? D ???? D ????

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218 views • 8 slides

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Pq bc - PowerPoint PPT Presentation

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