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3上 2-2 圓心角、圓周角與弧的關係

Authored by 康軒數位 康軒數位

Mathematics

9th Grade

Used 7+ times

3上 2-2 圓心角、圓周角與弧的關係
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,C點在圓O上,若∠AOB=42°,則∠ACD=?

159°

160°

161°

162°

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,AB兩點將圓O分成優弧與劣弧,且其度數比為7:1,若圓O的半徑為12公分,則∠AOB所對的弧長為多少公分?

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

作一圓通過四邊形ABCD中的ABC三點,若∠B+∠D=180°,則D點的位置為下列何者?

在圓內

在圓上

在圓外

無法確定

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

AFB為鈍角

CDE為直角

AFC為銳角

DCB<∠BFA

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

等腰三角形

等腰直角三角形

直角三角形

矩形

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,圓O中,若∠AOC=110°,則∠BAO和∠BCO的度數和是多少?

125°

120°

115°

110°

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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