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初三上册:第6章 (Part 2)

Authored by 陈伟菁Tan, Ching

Mathematics

9th Grade

Used 5+ times

初三上册:第6章 (Part 2)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

以上的图为一无盖盒子,求其表面积。

137 cm2

150 cm2

176 cm2

180 cm2

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一直圆柱的体积为1540 cm3,高为10 cm,求其底半径。(取  π=227\pi=\frac{22}{7}  )

7 cm

14 cm

21 cm

28 cm

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一棱锥的底面积为正方形,高为9 m ,若其体积为108 m3 ,求其底面的边长。

3 m

6 m

3\sqrt{3} m

232\sqrt{3} m

636\sqrt{3} m

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

以上的图为半球体,求其体积。
(答案以 π 表示)

18π  cm3cm^3  

36π  cm3cm^3  

54π  cm3cm^3  

108π  cm3cm^3  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一直圆锥的底半径为3 cm,斜高为 5 cm,求其体积。
( 取 π=227\pi=\frac{22}{7}  ) 

3747 cm337\frac{4}{7}\ cm^3

3757 cm337\frac{5}{7}\ cm^3

3767 cm337\frac{6}{7}\ cm^3

38cm338cm^3

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一球的表面积为36π cm2,求其体积。

18π cm3

36π cm3

54π cm3

72π cm3

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

以上的图所示为一高为 9 cm 的正棱锥。若它的体积为75 cm3 ,求 x 的值。

3 cm

5 cm

6 cm

8 cm

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