黑龙江省哈尔滨市第十七中学校2020-2021学年七年级下学期七年级期中学情检测数学试题（PDF版含答案）
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| 名称 | 黑龙江省哈尔滨市第十七中学校2020-2021学年七年级下学期七年级期中学情检测数学试题（PDF版含答案） |  | |
| 格式 | |||
| 文件大小 | 2.8MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（五四学制） | ||
| 科目 | 数学 | ||
| 更新时间 | 2021-05-13 08:39:54 | ||
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17 2021. 4.29
1 2 3 4 5 6 7 8 9 10
A B B B C C B C D C135
3 30
4x?7
11. 10 12. 13. -2a2 14. 100° 15. 4x7
2
16. 45° 17. 20 18. 20° 19. 5 15 20. 16
? 1
?x = 1
21. 1? 2 2x3
2
?
?y =5
22. 12 32
23. 3x1 x 2x = -2 3x4 = -2aa = 1
24. 1ADCBEC = 180°BECAEB = 180°
ADC =AEB ABCBAD =EBCC
BAD =EBC ABC =C
2ABCCAFEBFD
?5x+6y =950 ?x=150
25. 1? ?
?3x+2y =450 ?y =75
AB10075
2130100a1007550a1460
a42
a a43 A 43
26. 1C = 90° ABCA = 90°
ADE =ABC ADEA =ABCA = 90°
DEAB
2G GHDC GHD = 90°
AG EACGEA GHA
DGA =AGH
DDGAAGH = D2DGA = 90°
3K = 22.5°
27. 1AC = 4BC = 10
16 4
2d = - t
5 25
20 24
3P
7 7
1 2 3 4 5 6 7 8 9 10
A B B B C C B C D C135
3 30
4x?7
11. 10 12. 13. -2a2 14. 100° 15. 4x7
2
16. 45° 17. 20 18. 20° 19. 5 15 20. 16
? 1
?x = 1
21. 1? 2 2x3
2
?
?y =5
22. 12 32
23. 3x1 x 2x = -2 3x4 = -2aa = 1
24. 1ADCBEC = 180°BECAEB = 180°
ADC =AEB ABCBAD =EBCC
BAD =EBC ABC =C
2ABCCAFEBFD
?5x+6y =950 ?x=150
25. 1? ?
?3x+2y =450 ?y =75
AB10075
2130100a1007550a1460
a42
a a43 A 43
26. 1C = 90° ABCA = 90°
ADE =ABC ADEA =ABCA = 90°
DEAB
2G GHDC GHD = 90°
AG EACGEA GHA
DGA =AGH
DDGAAGH = D2DGA = 90°
3K = 22.5°
27. 1AC = 4BC = 10
16 4
2d = - t
5 25
20 24
3P
7 7
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