ʱ : 山西省忻州市2019-2020年八年级上学期期中考试数学试题(无答? - 百度文库ϿʼĶ
2019-2020ȵһѧڰ꼶ѧԾвԣ
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ڢ ѡ⣨30֣
һѡ⣨ÿСĸѡУֻһ⣬ѡڴϽͿ.10С⣬ÿС3֣30.
1.ͼǼı־ԳͼεУ
A.1
B.2
C.3
D.4
2.и߶Ϊߣεǣ A.235
B.236
C.864
D.6714
3.?ABC?DEFAB?9BC?8AC?6DFijΪ A.6
B.8
C.9
D.10
4.ͼDEֱ߶ABACϣCDBEཻڵP֪AD?AE.ĸԲж?ABE?ACD
A.?B??C
B.AB?AC
C.BD?CE
D.BE?CD
5.ͼAֱlϣ?ABC?AB?C?ֱlԳƣBB?ֱACAC?ڵDD?CC?.н۲һȷǣ
A.?BAC??B?AC? B.BD?B?D?
C.AD?DD?
D.CC?PBB?
6.֪һεÿڽǶΪ135?ӸöεһԽߣ
A.8 B.7 C.6 D.5
7.ϰϣʦһ⣺֪εһߵ5һߵ7õεܳ. СС鷢ԣεı߷Ϊ͵ױߣԵһ57ǵױ߳ڶ5ǵױ߳7ܳΪ1719.Сֵѧ˼ǣ A.
B.ν
C.ת˼
D.˼
8.ͼ?ABCУDEֱƽACABڵEECBC?9cmAB?10cm?EBCܳΪ
A.16cm
B.18cm
C.19cm
D.28cm
9.һһϵĸһļнΪ50?õζǵĶΪ A.40?
B.40?140?
C.50?130?
D.60?120?
10.ͼ?ABC?A?B?C?B?ABϣ߶A?B?ACڵD.?A?50??B?60??A?CBĶ
A.130?
B.100?
C.120?
D.135?
ڢ ѡ⣨90֣
⣨ÿС3֣5С⣬15֣
11.ݶƶȽжҵε״ξ_________. 12.ͼ?ABCУ?ABC?ACBƽBECDཻڵF?A?60??BFCĶΪ_________.
13.ͼ?ABCУAB?ACAD?BCDE?ABCΪ14cm2FADȷֵ㣬
ͼӰֵ___________cm2.
14.ͼƽֱϵУA??1,1?B??5,3?Pxһ㣬PA?PBֵСʱPΪ_________.
15.ͼ?DAE??ADE?15?DEPABDF?ABڵFAE?10cmDFijΪ__________.
⣨8С⣬75֣Ӧд˵֤̻㲽裩
16.ͼ?ABCĶ㶼ĸϣA??1,4?
1?ABCyĶԳͼ?A?B?C?AĶӦA?Ϊ___________. 2?ABCxĶԳͼ?A??B??C??AĶӦA??Ϊ__________. 3۲ͼΣ˵һ˵A?͵A??ʲôص.
17.ͼAC?DFAD?BEBC?EF֤ACPDF.
18.Ҫͼе?MONƽ֣Сǿ·
OMONϷֱȡOA?OBADA?OMAONDBEB?ONڵBOMEADEBڵCOCOCOCΪ?MONƽ.˵.
19.ͼ?ABCУAB?ACDBAӳϵһ㣬EACе.
1ʵ
ó߹水ҪͼͼбӦĸͼۼдͼ. ?DACƽAM BEӳAMڵF. 2֤
ԲAFBCλùϵϵ˵.
20.ͼ?ABCУADBEڵHBH?AC?ABCĶ.
21.ͼƽֱϵУ?ABCĶACֱyᡢxϣA?0,2??ACB?90?AC?BCBڵһʱB.
C?1,0?