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九上3-2重心

Authored by 黃俊賓 關山國中

Mathematics

9th Grade

16 Questions

Used 1+ times

九上3-2重心
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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6

9

12

18

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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28

24

16

12

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

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甲、乙

乙、丙

丙、乙

丙、甲

Answer explanation

外心在鈍角△的外面,丙為外心

重心在中線距頂端的2/3處,乙為重心

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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△ABF 的面積為 16

四邊形 ABCD 面積為 108

Answer explanation

平行四邊形面積=8×12=96

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

憑儀打算將一塊三角形的土地平分給三個小孩,則她必須先找出該土地的哪個交點?

三角形三邊中垂線的交點

三角形三條中線的交點

三角形三內角平分線的交點

三角形三邊上的高之交點

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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如圖,G為△ABC的重心,若△ABC的面積為36平方公分,則斜線部分的面積為多少平方公分?

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