
八年級數學-平面圖形與線對稱
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
蔡佩旻 蔡佩旻
Used 2+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若想以對摺方式將∠ABC 十六等分,則至少需對摺幾次?
15 次
8 次
4 次
3 次
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何種圖形的對稱軸數最少?
正三角形
正方形
長方形
平行四邊形
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列敘述何者正確?
長方形的對角線同時也是長方形的對稱軸
平行四邊形、菱形、等腰三角形都是線對稱圖形
菱形是正方形的一種
正 n 邊形有 n 條對稱軸
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知 A 點的坐標為(-3 , 2),則若以 y 軸為對稱軸,A 點的對稱點坐標為何?
(-3 , -2)
(3 , 2)
(3 , -2)
(2 , -3)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知等腰直角三角形的斜邊長為 16,則此三角形的面積等於多少平方單位?
8
16
32
64
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
同一平面上,線段AB的垂直平分線有幾條?
1
2
3
無限多
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若△ABC 為線對稱圖形,且∠A=50°,則下列何者不可能是∠B 的度數?
50°
65°
80°
90°
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