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# The first week of the 2010 semester, the seventh week of the Teaching and Research Alliance activity test, eighth grade mathematics papers, answer cards, and answers

The Grade Eight Mathematics Examination Paper of Shunde District of Foshan City

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Teaching and Research Alliance Activity Test in the seventh week of the first semester of 2010

Grade eight math test questions

I. Multiple-choice questions (30 points in total, 3 points for each sub-question)

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2. In the following numbers 5, 3.2 and 0.32, the irrational numbers have a total of () 2

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… __… __line __… __… __… _ #… learning…… _… __… __… __… __… __… __… Name Last Name…… _… __… __… __… __ … _Don't… class ………… install ……………………………… 7A 1 B 2 C 3 D 4 2 and 16 The square root is () 2

A, 2 B, 4 C, 2 D, 4 3. In the following statements, the correct one is () 2

A. Negative numbers also have a cubic root B, (3) 2 has no arithmetic square root C,-(3) 2 has 2 square roots D, -a cannot have a square root 4. In the following calculations, the correct one is () 1

A, 8 2 B, (2) 3 2 C, (25) 2 25 D, 25 5

5. Among the triangles composed of three line segments of the following length, the three sides of a right-angled triangle are (A, 9, 12, 13; B, 15, 12, 7; C, 12, 5, 13; D, 12, 18, 6 6. In ABC, C 90, AB = 10, AC = 6, then BC = () 1 A, 16 B, 136 C, 4 D, 8

7. After reducing three sides of a right-angled triangle at the same time by 2 times, the resulting triangle is () 1 A acute-angled triangle B right-angled triangle C obtuse-angled triangle D cannot be determined 8. Among the following graphic transformations, the translational transformation is ()

3

ABCD

9. As shown in the figure, the triangle that △ OFE can obtain through translation is (

A, △ BCO B, △ COD C, △ DEO D, △ AOF

1

)1

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