
九上數3-2外心Q2
Authored by Enina Wang
Mathematics
6th - 8th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,o為外心,請問這是何種∆?
銳角∆
鈍角∆
直角∆
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,o為外心,請問這是何種∆??
鈍角∆
銳角∆
直角∆
任何∆都可以
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,o為∆的外心,請問此外接圓r=??
2股和
斜邊長
斜邊/2
周長/3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,O為外心,請問∠BOC和∠A的關係??
∠BOC=∠A
∠BOC=2∠A
∠BOC=∠A/2
∠BOC=360°-∠A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,o為外心,請問∠BOC和∠A的關係式會是何者??
∠BOC=∠A
∠BOC=360°-2∠A
∠BOC=360°-∠A
∠BOC=2∠A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,在銳角△ABC中,O點為外心,若∠BAC=66°,則∠BOC的度數為何?
66°
114°
132°
48°
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,在鈍角△ABC中,O點為外心,若∠BAC=115°,則∠BOC的度數為何?
115°
230°
65°
130°
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