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數學 - 圓的面積 (6下C)

Authored by NT Lui

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數學 - 圓的面積 (6下C)
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42 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個圓的半徑是 5 厘米,求它的面積 (取 π=3.14)

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個圓的直徑是 14 厘米,求它的面積 (取 π=22/7)

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個半圓的半徑是 6 厘米,求它的面積 (取 π=3.14)

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個圓的半徑是 10 厘米,求它的面積 (取 π=3.14)

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個圓的直徑是 30 厘米,求它的面積 (取 π=3.14)

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

一個四分之三圓的半徑是 14 厘米,求它的面積 (取 π=22/7)

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

圓形時鐘的鐘面半徑是 16 厘米,求它的面積 (取 π=3.14)

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