已知CD弧=60°,AD弧=50°,則∠ABC度數=?
2-2 圓心角、圓周角、弦切角

Quiz
•
Mathematics
•
9th Grade
•
Medium
陳 嘉卿
Used 12+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
60°
55°
50°
30°
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知CD弧=60°,AD弧=50°,則∠DOC度數=?
60°
55°
50°
30°
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知AD弧=50°,CD弧=60°,BC弧=200°則∠DAB度數=?
260°
250°
130°
110°
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
∠CAB的中文名稱為?
圓內角
圓周角
圓外角
弦切角
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
∠BAD的中文名稱為?
圓心角
圓周角
圓內角
弦切角
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
直線DE切圓O於A點,若 AC弧=140°,
且∠BOC+∠BAC=150°,則∠BAD=?
50°
60°
70°
80°
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
關於此圓內接四邊形的圖,下列敘述哪些正確?
E為圓心
∠A、∠B、∠C、∠D皆為圓周角
∠A+∠B=180°
∠A+∠C=180°
∠D+∠B=180°
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