9 -1 .F BGaH" rI31.85?.\r: 3.14x31.852*100x31.85x2\r=3185.28665+3185x2\r=3185.28665*6370\r=9555(\r?)\r12X8X100X2*3.14X(3L85+1.2X8)2-3.14X31.852\r=1920*3.14 x41.452-3185.28665\r= 1920*5394.84185-3185.28665\rh4129 H\r?)\r29-2 F BKL?MN9555\r?,O K ?MN412P\r?.\r1 < = ? 2 ?@ 10\r 1 1 1 2 .\r30T%\r¦1 Q§t?(5 ?@ 26)\rQ : 25+(1 - 60% - 15%)\r=25+(40% - 15%)\r=25+25%\r=100 R\r32-1%F BST*pU100V.\r/01127\r/0212WX\r/0312Y\r/041217\r/0512240\r33-1% /0 Z 232\r< :36+9=4\r27+9=3\r34-1%F B[\]N[^4 fs !“`]N"b3c.\r< :08384+16=524 , deAN4 , SfghiN48384\r48384=28X33*7= (2 2 $3 ) $ (2 * 7 ) x2*x (2*32 ) =12x14*16x18\rdeSgfjiN12 , 14 , 16 , 18 .\r35-1%F BSgfkiN12 , 14,16 , 18 .\r36-1%< Blmnop?qN*I .\r 1 2 1 2
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