3上 2-2 圓心角、圓周角與弧的關係

Quiz
•
Mathematics
•
9th Grade
•
Medium
康軒數位 康軒數位
Used 7+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,C點在圓O上,若∠AOB=42°,則∠ACD=?
159°
160°
161°
162°
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,A、B兩點將圓O分成優弧與劣弧,且其度數比為7:1,若圓O的半徑為12公分,則∠AOB所對的弧長為多少公分?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
作一圓通過四邊形ABCD中的A、B、C三點,若∠B+∠D=180°,則D點的位置為下列何者?
在圓內
在圓上
在圓外
無法確定
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
∠AFB為鈍角
∠CDE為直角
∠AFC為銳角
∠DCB<∠BFA
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
等腰三角形
等腰直角三角形
直角三角形
矩形
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖,圓O中,若∠AOC=110°,則∠BAO和∠BCO的度數和是多少?
125°
120°
115°
110°
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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