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九上3-2外心

Authored by 黃俊賓 關山國中

Mathematics

9th Grade

Used 2+ times

九上3-2外心
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10 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

外心是由什麼線畫出來的?

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

內心是由什麼線畫出的?

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

重心是由什麼線畫出來的?

4.

DRAG AND DROP QUESTION

1 min • 1 pt

外心在​ (a)   的內部,在​ (b)   的斜邊中點上,在​ (c)   的 外部。

銳角三角形
直角三角形
鈍角三角形
正三角形
30-60-90

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

內切圓直徑

外接圓直徑

內切圓半徑

外接圓半徑

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在△ABC中,∠A=120、∠B=40、∠C=20,O點為△ABC的外心,∠BOC=?

120°
100°
80°
60°

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在△ABC中,∠A=90、∠B=40、∠C=50,O點為△ABC的外心,∠BOC=?

90°
70°
100°

180°

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