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翰林國中數學2下CH3-4-中垂線與角平分線性質

Authored by 翰林數學 翰林數學

Mathematics

8th Grade

Used 15+ times

翰林國中數學2下CH3-4-中垂線與角平分線性質
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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如圖,在梯形ABCD中, AD\overline{AD} // BC\overline{BC} ,∠A=90°, AD\overline{AD} =6, BC\overline{BC} =10。若作 CD\overline{CD} 的中垂線恰可通過B點,則 AB\overline{AB} 

8

9

12

18

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下敘述何者錯誤

正六邊形的每一個外角都會相等

兩個正三角形一定會全等

有一點到角的兩邊距離相等,則此點會在這個角的角平分線上

有一點到線段的兩端距離相等,則此點會在這個線段的中垂線上

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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如圖,已知四邊形ABCD中,L為 AD\overline{AD} 的中垂線,P為L上任意一點,則下列哪一個等式恆成立?

 PA=PB\overline{PA}=\overline{PB}  

 PB=PC\overline{PB}=\overline{PC}  

 PC=PD\overline{PC}=\overline{PD}  

 PD=PA\overline{PD}=\overline{PA}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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如圖,已知 AB\overline{AB} =40,C點在 AB\overline{AB} 的垂直平分線上,且△ABC的周長為98,求△ABC的面積=?

200

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400

420

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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 如圖,已知 BD\overline{BD} 是∠ABC的角平分線,且 AD=CD\overline{AD}=\overline{CD} ,則∠A+∠C=?

150°

180°

210°

無法求得

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知P、Q、R三點不在同一直線上,O為 PQ\overline{PQ}  QR\overline{QR} 中垂線的交點。若 OQ\overline{OQ} =13公分,則 OP+OQ+OR\overline{OP}+\overline{OQ}+\overline{OR} =? 

26公分

35公分

39公分

條件不足,無法求得

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如圖,△ABC中, CD\overline{CD}  AB\overline{AB} 上的高,若 AC=CE\overline{AC}=\overline{CE} =13, AE\overline{AE} =10 BC\overline{BC} =15,則 BE\overline{BE} =?

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