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522_1圓心角、圓周角、弦切角

Authored by 洪榮忠 新湖國中

Mathematics

9th Grade

Used 44+ times

522_1圓心角、圓周角、弦切角
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

下圖中的 AO1B\angle AO_1B  為圓的什們角?

圓心角

圓周角

圓外角

弦切角

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

已知 AOB\angle AOB  為65度,請問AB弧為多少度?

60

130

65

55

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如圖,兩同心圓中,大圓的半徑為5,小圓的半徑為3,∠AOB=50°,求:CD弧的度數

50

5

3

56π\frac{5}{6}\pi

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如圖,兩同心圓中,大圓的半徑為5,小圓的半徑為3,∠AOB=50°,求:CD弧的長度

50

100

 518π\frac{5}{18}\pi  

56π\frac{5}{6}\pi

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

 BPA\angle BPA  稱為此圓的什麼角?

圓周角

圓心角

圓外角

圓內角

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

已知AB弧為100度,則 BPA\angle BPA  的度數為多少?

50

25

90

100

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

試問下列何者可能是圓內接四邊形 ABCD 的四個內角度數?

57°、70°、110°、123°
62°、85°、105°、108°
70°、80°、90°、120°
60°、90°、100°、110°

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