6下A 第四至六課︰圓的認識(一)(二)

6下A 第四至六課︰圓的認識(一)(二)

6th Grade

12 Qs

quiz-placeholder

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6下A 第四至六課︰圓的認識(一)(二)

6下A 第四至六課︰圓的認識(一)(二)

Assessment

Quiz

Mathematics

6th Grade

Practice Problem

Medium

Created by

電子學習平台數學 電子學習平台數學

Used 132+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

圖中,直線 AB 是圓的直徑。O 點是 _______。

半徑

圓心

直徑

圓周

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

O 是圓心,那麼 OC 是圓的 _______。

圓心

圓周

直徑

半徑

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

O 是圓心,圖中哪一條直線是直徑?

MQ

PN

OM

RN

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

以下哪一項的描述是正確的?

一個圓的圓心一定是在圓周上

半徑 = 直徑 X 2

圓周上任意兩點所連成的直線,最長的是直徑

一個圓只有一條直徑

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

O 是圓心,PR 的長度是 OQ 的 _____ 倍。

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

A、B 和 C 分別是小圓、中圓和大圓的圓心。假如小圓的半徑

是 2 cm,大圓的直徑是多少?

8 cm

12 cm

16 cm

18 cm

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

圖中,ABC 分別是三個圓的圓心,這三個圓的半徑分別長 3 cm、4 cm 和 5 cm。三角形 ABC 的周界是多少?

6 cm

12 cm

18 cm

24 cm

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