
八年級數學-尺規
Quiz
•
Mathematics
•
8th Grade
•
Hard
蔡佩旻 蔡佩旻
Used 14+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
關於尺規作圖的敘述,下列何者正確?
將線段平分的直線只有一條
尺規作圖是利用直尺和圓規畫圖,並利用直尺上的刻度來度量
過線外一點對直線 L 作垂直線有無限多條
過線上一點作垂線只有唯一的一條。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一種觀念或定理不能用尺規作圖來完成?
過直線外一點作此直線的垂直線
將一線段 8 等分
將任一角三等分
給定一個三角形,畫一圓通過此三角形三頂點。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用角平分線作圖 4 次,可將一角分成兩部分,則此兩部分的度數比不可能為下列何者?
1:15
3:13
5:13
9:7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪個角度無法利用尺規作圖完成?
30 度
67.5 度
80 度
135 度
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
假設 A、B 兩點相距 2 公分,現以 A 為圓心畫一個半徑為 2 公分的圓,再以 B 為圓心畫一個半徑為 3 公分的圓,如果兩圓相交於 C、D 兩點,則△CAB 是什麼三角形?
直角三角形
等腰三角形
銳角三角形
正三角形
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知,今各以 A、B 兩點為圓心,為線段AB半徑畫兩圓,這兩圓交於 C、D 兩點,連接線段CA、線段CB、線段DA、線段DB成一四邊形,則此四邊形是下列何者?
菱形
梯形
矩形
箏形
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用線段中點作圖,欲在長為 32 公分的線段上,作出一條長為 20 公分的線段,至少需作圖幾次?
3 次
4 次
5 次
6 次
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