
翰林國中數學2下CH3-1-內角與外角
Authored by 翰林數學 翰林數學
Mathematics
8th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,一輛車由A地出發,經B、C兩地行駛至D地停止,則此輛車共轉了幾度?
50°
130°
230°
270°
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在△ABC中,若∠A+∠B=110°,∠A+∠C=140°,則△ABC為何種三角形?
不等邊三角形
等腰三角形
直角三角形
正三角形
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
已知曉晶家的地板全由同一形狀且大小相同的地磚緊密的鋪成。若此地磚的形狀為一正多邊形,則下列何者不可能為此地磚的形狀?
正三角形
正方形
正五邊形
正六邊形
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一臺玩具車,往前50公分後右轉(最多轉30°),然後再往前50公分後,再右轉(最多轉30°),之後以此方式前進,如果玩具汽車所行走的路徑形成一正n邊形,則n的最小值為多少?
6
8
9
12
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者為一個三角形的一組外角度數?
65°、55°、60°
100°、100°、100°
100°、110°、150°
70°、80°、120°
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
關於正n邊形的內角度數之敘述,下列何者錯誤?
正三角形每一個內角是60°
正方形每一個內角是90°
正五邊形每一個內角是108°
正六邊形每一個內角是60°
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列敘述何者錯誤?
三角形外角和是三角形內角和的2倍
四邊形的外角和等於四邊形的內角和
五邊形的外角和是五邊形內角和的
六邊形的外角和是六邊形內角和的
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