
九上數學三段-外心
Authored by 蔡佩旻 蔡佩旻
Mathematics
9th Grade
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
32π
64π
16π
8π
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5
169/24
12
169/12
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
△ABC中,O點為外心,若∠BOC=150°,則∠BAC= ?
75度
105 度
150度
75或105 度。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
18根號3
9根號3
12根號3
36根號3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
169/10
169/12
12
10
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若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
80°
120°
130°
160°
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