三角形的三心
Authored by 陳舒雁 陳舒雁
Mathematics
9th - 12th Grade
Used 1+ times
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9 questions
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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
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