在同一平面上關於「點、線、角」的敘述下列何者正確?
433角平分線與垂直平分線性質

Quiz
•
Mathematics
•
8th Grade
•
Hard
洪榮忠 新湖國中
Used 10+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如果尺夠長的話,必能測量直線L的長度
過相異的A、B兩點,只能決定一條直線
若兩角相加等於90度,稱這兩個角互補
若延伸角A的兩邊,則角A的角度亦跟著加大
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,已知四邊形ABCD中,L為 的中垂線,P為L上任意一點,則下列哪一個等式恆成立?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知P、Q、R三點不在同一直線上,O為 、 中垂線的交點。若 =13公分,則 =?
26公分
35公分
39公分
條件不足,無法求得
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
如圖,在梯形ABCD中, // ,∠A=90°, =6, =10。若作 的中垂線恰可通過B點,則 ?
8
9
12
18
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
如圖,已知 =40,C點在 的垂直平分線上,且△ABC的周長為98,求△ABC的面積=?
200
320
400
420
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
如圖,在坐標平面上有A、B、C三點,O是原點, 且 。欲在第一象限內找一點D,使得D到x軸的距離與D到y軸的距離相等,且 ,則D點要用下列何種方法求得?
作 的中垂線與∠COA的角平分線之交點
作 的中垂線與∠BAO的角平分線之交點
作 的中垂線與 的中垂線之交點
作∠COA的角平分線與∠BAO的角平分線之交點
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖, 平分∠AOC, 平分∠BOC。若∠AOB=120°,則∠POQ=?
50°
60°
70°
80°
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