
九上三段複習-E
Authored by 蔡佩旻 蔡佩旻
Mathematics
9th Grade
Used 2+ times

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15 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列敘述何者錯誤?
a是任意一個奇數,證明a2也是奇數
a,b是任意一個奇數,證明ab也是奇數
任意兩個奇數相加的和是奇數
a是整數,a+1是奇數
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列敘述何者錯誤?
任意兩個偶數的乘積是偶數。
任意兩個偶數的相加是偶數。
一奇數、一偶數的相加是偶數。
a是整數,a+1是偶數
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小章想將一質地均勻的三角形蛋糕平分給六個人,試問他應該怎麼切?
沿三角形蛋糕三邊上的高切
沿三角形蛋糕的三內角平分線切
沿三角形蛋糕的三中垂線切
沿三角形蛋糕的三中線切
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果想要在三個村莊 中間建一間圖書館,讓圖書館到三個村莊距離一樣,請問要找三角形的什麼心?
外心
內心
重心
垂心
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果想要在三條道路 中間建一加油站,讓加油站到三條道路距離一樣,請問要找三角形的什麼心?
外心
內心
重心
垂心
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如下圖,圓O中有多個三角形,則O點不是下列哪一個三角形的外心?
△ABE
△ACF
△ABD
△ADE
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
距離D點6公分處
距離D點8公分處
距離D點12公分處
距離D點16公分處
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