2-2 圓心角、圓周角、弦切角

2-2 圓心角、圓周角、弦切角

9th Grade

18 Qs

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2-2 圓心角、圓周角、弦切角

2-2 圓心角、圓周角、弦切角

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

陳 嘉卿

Used 12+ times

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

已知CD弧=60°,AD弧=50°,則∠ABC度數=?

60°

55°

50°

30°

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

已知CD弧=60°,AD弧=50°,則∠DOC度數=?

60°

55°

50°

30°

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

直線DE切圓OA點,若 AC弧=140°,

且∠BOC+∠BAC=150°,則∠BAD=?

50°

60°

70°

80°

7.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media Image

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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