
三角形的三心

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
陳舒雁 陳舒雁
Used 1+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三角形外接圓的圓心稱為三角形的
外心
內心
重心
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
可運用何種尺規作圖方式找出三角形的外心?
中垂線
中線
角平分線
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是銳角三角形的外心作圖?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三角形內切圓的圓心稱為三角形的
外心
內心
重心
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
可運用何種尺規作圖方式找出三角形的內心?
中線
中垂線
角平分線
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是三角形的內心作圖?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖(一) △ABC,O為外心,若∠B=60゚,∠C=70゚
∠BOC為________゚
50゚
100゚
130゚
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖(二),O為△ABC的外心,其中∠A=100°,
∠BOC為________゚
100°
160°
80°
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖(三),△ABC中,I為內心,∠B=50°,∠C=60° (圖三)
∠BIC為________゚
145°
130°
110°
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