Properties of Circles

The diagram shows a circle, centre O.

What is the value of x

• 106

• 53

• 37

• 90

The diagram shows a circle, centre O.

What is the value of z.

• 116

• 244

• 58

• 122

The diagram shows a circle, centre O.
Points A, B, C and D lie on the circumference.
AB=BC
What is the value of angle ADC

• 76

• 52

• 104

• 38

The diagram shows a circle, centre O.

What is the value of w.

• 104

• 73

• 21

• 42

The diagram shows circle with AB as a diameter.

Angle BAC and ACB are in the ration 5:7.

What is the value of BAC.

• 75

• 37.5

• 52.5

• 90

What are the values of w, x and y?

• w=26, x=128, y=52

• w=32, x=64, y= 26

• w=26, x=116, y=54

• w=26, x=128, y=62

A point B is 17cm away from the centre O of a circle. AB is the tangent to the circle at A. Given that AB = 15 cm, find the radius of the circle.

• 8 cm

• 9 cm

• 2 cm

• 16 cm

Find the value of X

• 3

• 16

• 8

• 12

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Find the value of X

• 8.5

• 3.6

• 7.2

• 9.2