2下 3-2 三角形與多邊形的內角與外角
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
康軒數位 康軒數位
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列敘述何者錯誤?
四邊形可以只有一個直角
四邊形可以只有二個直角
四邊形可以只有三個直角
四邊形可以有四個直角
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
△ABC中,∠B的外角為135°,∠A-∠C=15°,則∠C=?
55°
60°
75°
80°
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知一三角形的兩外角分別為60°和150°,則此三角形應為下列哪一種三角形?
等腰三角形
銳角三角形
直角三角形
正三角形
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知一多邊形的內角和為900°,則此多邊形為何種多邊形?
五邊形
六邊形
七邊形
八邊形
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在△ABC中,若∠A>∠B>∠C,則∠C最大不超過幾度?
30°
45°
60°
90°
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一組是三角形的三外角度數?
90°、90°、90°
100°、120°、140°
90°、110°、150°
30°、60°、90°
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若△ABC的兩外角和為270°,則△ABC是哪一種三角形?
直角三角形
銳角三角形
鈍角三角形
不一定
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