8.1 圆心角

8.1 圆心角

9th Grade

9 Qs

quiz-placeholder

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8.1 圆心角

8.1 圆心角

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

CCSS
8.G.A.2, HSG.C.A.2

Standards-aligned

Created by

chs1717 Han_黄思涵_

Used 8+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

两个大小一样的圆,可称它们为_____。

同圆

等圆

相似圆

全圆

Tags

CCSS.8.G.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

根据圆心角定理,当两个圆心角相等,以下哪个组量不对应相等?

弦心距

圆周角

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

在图中,哪个是圆心角?

AXB\angle AXB

AOB\angle AOB

APB\angle APB

AYB\angle AYB

Tags

CCSS.HSG.C.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

根据上图,哪条线不是弦?

XYXY

AYAY

ABAB

POPO

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

以下哪个选项是弧长?

XY\overline{XY}

ABAB

OPOP

AYAY

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

以下哪个是弦心距?

XY\overline{XY}

ABAB

OPOP

AYAY

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

如图, AB=BC=CA\overline{AB}=\overline{BC}=\overline{CA}  ,求 COA\angle COA  。(只填写数字,无需单位)

8.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

上图中, AOB=COB\angle AOB=\angle COB  ,若 AB=3 AB=3\  ,求 CBCB  的长。(只填写数字,无需单位)

9.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Media Image

图中, ABAB 为直径, AOC=COD=DOB\angle AOC=\angle COD=\angle DOB ,求 AB\overline{AB}  。