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客家美食大團圓 數學測驗

Authored by 莊云彤 莊云彤

Mathematics

8th Grade

Used 7+ times

客家美食大團圓 數學測驗
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

直徑14的黑糖發糕,面積大約是14×3.14?

  • ×

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

「扇形的圓心角90°:整個圓的圓心角360°」和「扇形面積:圓面積」,這兩個比會相等嗎?

  • ×

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

小發糕的半徑是3,大發糕的半徑是9,大發糕的面積大約是小發糕的幾倍?

2

3

6

9

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

小發糕的半徑是3,大發糕的半徑是6,大發糕的周長是小發糕的幾倍?

2

3

6

9

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

圓面積公式是什麼?

半徑 × 2 ×圓周率

直徑×圓周率

半徑 × 半徑 ×圓周率

直徑 × 直徑 ×圓周率

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

半徑6公分的圓面積比直徑7公分的圓面積大?


×

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

下列敘述何者正確?

甲圓的圓周率比乙圓小

乙圓的圓周率是甲圓的2倍

甲圓和乙圓的圓周率都是3.14

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