Angle at the centre of a circle theorem

Angle at the centre of a circle theorem

9th Grade

7 Qs

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Angle at the centre of a circle theorem

Angle at the centre of a circle theorem

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

Sam Atakorah

Used 7+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What circle theorem can be used in this diagram?

A 90-degree angle is formed in a semi-circle

The angle at the centre of a circle is twice the angle at the circumference

Angles in a cyclic quadrilateral add to make 180 degrees

Alternate segment theorem

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the value of the angle marked x....

50

100

80

90

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the m∠ADB?

16o
32o
64o
14o

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

find the measure of angle a

30
21
60
120

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the value of the angle marked x....

125

70

110

55

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Shown is a circle with centre O.

ABC is a straight line.

Angle CBD is 146°.

Find the size of angle AOD.

86

68

34

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What are the sizes of a and b?

a = 57, b = 114

a = 57, b = 57

a = 114, b = 57

a = 57, b = 28.5