143m 430m43m43m 400m2m2n2m2n2 4mn 100m20n2n2 D2mn+2

3"xy88"x8y=8 Bxy=8 Cxy8xy4, 3 4 5 345

5a/b/a>b>0 Aa b / Ba /2b/Ca b /2/ Da b /2/6 AB5/1613/101/680/13671/46726318368205170 A14 B15 C16 D179xcm,35cm,1cm,1/2x1031229774200xx11,481xx 12,6.3 4.2/4.8/ 19.813,2.5140014401862 15345:4:3:5163812 317500/300/4001871260mm150mm325mm130130mm22.52320 33241440411635101215361201A2B10718/14/?320?25824/25039 65110/2.51018221511361240%""102700131015714 2.25%3615 1503028816 1061217 416318 12119 """4100"20 15x+45x=180

211610262252151423140501207024359425AB360AB7225BA48100263236002740175401531028311552229359430201228014312541703213123322.5,15,37,?

343144835252029363.5243713?

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