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圆周长及面积

Authored by MK miki

Mathematics

7th Grade

Used 19+ times

圆周长及面积
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

通過圓心且兩端都是在圓的周界上的線段,稱為 ________。

圆心

圆周

直径

半径

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

若一圆的直径为14 cm,求其半径。

7 cm

3.5 cm

8 cm

4 cm

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

若一圆的半径是35 cm,求其周长(取 π=22/7)。

55 cm

110 cm

154 cm

220 cm

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

陆译的书桌为一半径等于 7 m的半圆形状,求此书桌的周长。 (取 π = 22/7)

22 m

44 m

36 m

58 m

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

小布在墙上画了一幅圆形的画。如果绘画的直径为4 cm,那么他需要多少油漆才能覆盖圆的内部?这个问题是问您要找到面积,周长还是都不是?

面积

周长

都不是

不知道

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

一圆形赛道的直径为0.5 mile (英里)。

那么一辆车在赛道上一圈能行驶多远?

0.25 mile

1 mile

1.57 miles

15.7 miles

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

今夏家外有一个圆形花圃,用了66 m的铁丝围成篱笆,问这个花圃的面积是多少?(取π = 22/7)

346.5 m2

86.625 m2

1386 m2

132 m2

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