求該圓的半徑。

圓的基本性質_統測前溫習

Quiz
•
Mathematics
•
10th Grade
•
Medium
khoot math
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3 cm
4 cm
5 cm
6 cm
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
求 x 和 y。
x = 70°, y = 110°
x = 140°, y = 70°
x = 220°, y = 110°
x = 70°, y = 35°
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
BD 是圓的一條直徑,求 x 和 y。
x = 50°. y = 50°
x = 40°. y = 50°
x = 40°. y = 40°
x = 50°. y = 40°
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
求 弧AD 和 弦AD 的長度
弧AD = 114,弦AD = 15 cm
弧AD = 15 cm,弦AD = 15 cm
弧AD = 15 cm,弦AD = 12.6 cm
(答案準確至三位有效數字)
弧AD = 15 cm,弦AD 不能求得
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
PA 和 PB 分別是圓於 A 和 B 的切線。求 ∠OAB。
19°
38°
90°
142°
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
圖中所示為一個半徑 6 cm 的圓。AB 是圓於 P 的切線。若 OA = OB 及 AB = 16 cm,求 △OAB 的周界。
34
35
36
37
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在圖中,PQ 和 RS 分別是圓於 A 和 B 的切線,x =
a + b
a – b
180° + a + b
180° – a – b
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