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圓的基本性質_統測前溫習

Authored by khoot math

Mathematics

10th Grade

Used 2+ times

圓的基本性質_統測前溫習
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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求該圓的半徑。

3 cm

4 cm

5 cm

6 cm

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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xy。  

x = 70°, y = 110°

x = 140°, y = 70°

x = 220°, y = 110°

x = 70°, y = 35°

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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BD 是圓的一條直徑,求 x 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

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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

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PA PB 分別是圓於 A B 的切線。求 ∠OAB

19°

38°

90°

142°

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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圖中所示為一個半徑 6 cm 的圓。AB 是圓於 P 的切線。若 OA = OB AB = 16 cm,求 △OAB 的周界。

34

35

36

37

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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在圖中,PQRS 分別是圓於 AB 的切線,x =

a + b

ab

180° + a + b

180° – ab

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