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2016-2017学年福建省莆田市仙游县郊尾、枫亭五校教研小片区重点班八年级(下)期中数学试卷【精品文档】

---- 2016-2017 10 4 40 14 A B C D 24 A B C D 34 A B C D 44 B C A AB 1 C A1+ B2+ C2 1 D2 +1 54 ABC ABBCCA AB S1 S2 AS1=S2 BS1S2 CS1S2 D 64 Ay= x0 By= x0Cy= x0 Dy= x0 74 60 1 1 26 A B3 C +2 D 84 ABCD EF ABCD DE BF DE BF MN AMCNMN AB= BC= A4 B2 C2 D2 94 A 120km B 30km/h B s km th t AS=12030t 0t4 BS=12030t t0 CS=30t 0t40 DS=30t t4 104 ABCD B=60AB=a EF ABAD AE+AF=a EF A2 a B aC a D 6 4 24 114 x49= 124 y= x 134 ABCD DEAC EADEEDC=32 BDE 2 26 144 OABC OAOC x y D5 3 AB C CDB 90 D D 154 ABCD 4BAD=120 E AB F AC EF+BF 164 4 3 ... 1 1 5 9 86 178 a= +1 188 xy y= + + x+y 3 26 198 ABCD BD C CBC AD EAD=8AB=4 DE 208 ABC D BC EF AD CE BF BECF 1BDFCDE 2 DE= BC BFCE 2110 ABCD 3EF ABBC EDF=45 DAE D 90DCM 1EF=FM 2 AE=1 EF 2210 ABC AC MN AB D AC O CEAB MN E AECD ADCE 4 26 2310 ABCD ACBD O EF ABAD 1OEF 2 AB=13AC=10 EF 2412 11ABC P P ABC 345APB= PAPB ABP A ACPACP APB 212ABC CAB=90AB=ACEF BC EAF=45EF2=BE2+FC2 2512 1 ABCD BD E BD BEG BEG=90 F DG EF CF 1EF=CF 2EFCF 5 26 3 2BEG B 45 CEF 6 26 2016-2017 10 4 40 14 2013 A B C D D = 24 2015 A B C D A =7 B = C + =8 D3 =2 D 34 2004 A B C D ABC D D 44 2012 B C A AB 7 26 1 C A1+ B2+ C2 1 D2 +1 C x x = 1 x=2 +1 D 54 2006ABC ABBCCA AB S1 S2 AS1=S2 BS1S2 CS1S2 D ABC AB2=AC2+BC2 S1= = = =S1 S1=S2 A = 64 2017 Ay= x0 By= x0Cy= x0 Dy= x0 A x0 x y= y= x0 8 26 B x0 x y= y= x0 C x0 x y= y= x0 D x0 x y= y= x 0 B 74 2014 60 1 A B3 C +2 D RtABC B=60AB=1 A=9060=30 BC= AB= 1= AC= = = D 84 2016 ABCD EF ABCD DE BF DE BF MN AMCNMN AB= BC= 9 26 A4 B2 C2 D2 EF ABCD DE BF DEBF MN SAEM=SAMDSBNC=SFNCS EBNM=S DMNF = ABBC= =2 B 94 2017 A 120km B 30km/h B s km th t AS=12030t 0t4 BS=12030t t0 CS=30t 0t40 DS=30t t4 s=12020t 12030t0 t4 0t4 A 104 2017 ABCD B=60AB=a EF ABAD AE+AF=a EF A2 a B aC a D ACCECF ABCD a B=60 ABCCAD a AB=BC=CD=AC=ADCAE=ACB=ACD=CDF=60 AE+AF=a 10 26 AE=aAF=ADAF=DE ACE DCF ACEDCFSAS ACE=DCF ACE+ACF=DCF+ACF ECF=ACD=60 CEF EF=CE=CF E B A CE a CEAB E BD CE a EF=CE EF a B 6 4 24 114 2017x49= x x+ x2+3 x49=x2232=x23x2+3=x x x+ x2+3 x+ x2+3 124 2017 y= x x5 x50 x5 11 26 x5 134 2017 ABCD DEAC E ADEEDC=32BDE 18

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