
108-1_7上_數學3
Authored by Rusber Ru
Mathematics
7th Grade
Used 5+ times

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32 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
正三角形對稱軸的個數為a,等腰三角形對稱軸個數為b,長方形的對稱軸個數為c,則a+b+c=?
4
5
6
7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列三個圖形中有幾個是線對稱圖形?
0
1
2
3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,甲、乙、丙、丁均是由正方形組成的圖形,這四個圖中,哪些是線對稱圖形?
乙、丁
甲、乙
乙、丙
甲、丁
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在等腰三角形中, = , 為其對稱軸,D在上,若∠BAD=35°,則∠C=?
70°
65°
60°
55°
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
對稱軸與對稱兩點間的連線有什麼性質?
互相交叉
互相重合
互相平行
互相垂直
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,矩形ABCD內有一個圓,則其對稱軸為何?
L、M兩條
M、N兩條
L、 兩條
只有M一條
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
同一平面上, 的垂直平分線有幾條?
1
2
3
4
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