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九上數學三段-外心

Authored by 蔡佩旻 蔡佩旻

Mathematics

9th Grade

Used 2+ times

九上數學三段-外心
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

32π

64π

16π

8π

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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5

169/24

12

169/12

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ABC中,O點為外心,若∠BOC150°,則∠BAC= ?

75度

105 度

150度

75或105 度。

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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18根號3

9根號3

12根號3

36根號3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

169/10

169/12

12

10

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

O點為△ABC的外心,且 OA=5x-8、 OB=3x+8,則下列何者錯誤?

x=8

OA=32

OB=32

OC=16

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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80°

120°

130°

160°

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