Review Exercise 28 Objective)

8/6/2019 Review Exercise 28 Objective)

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REVIEW EXERCISE 28

Objective Questions1. In the diagram, O is the centre of a circle.

Given that OP= 5 cm,LM= 12 cm, and Mis the

midpoint ofPN.LPMNis a straight line. The length,

in cm, ofONis

A 13

B 14

C 15

D 17

2. In the diagram, O is the centre of a circlewith radius 5 cm. If the length of the chordPQ is 8

cm and the length of the chord QR is 6 cm, then OY

OX, in cm, is

A 1

B 12

1

C 2

D 24

1

3. In the diagram,HMis a diameter of a circle with centre O. The

chord GHis parallel to the straight lineKL. GKM,KOL and

HOMare straight lines. IfGH= 4 cm and GM= 3 cm, then thelength, in cm, ofKL is

A 32

1

B 34

3

C 4

D 42

1

4. In the diagram, O is the centre of a circle and OMNis an

equilateral triangle with sides of length 10 cm.Fis the midpoint

ofMNand OFG is a straight line. The length, in cm, ofFG is

A 1.12

B 1.24

C 1.34

D 1.39

Pearson Malaysia Sdn. Bhd 2008 Essential Mathematics PMR1


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5. In the diagram, O is the centre of a circle. The value ofm is

A 2s

B 2(p + q)C 2(s + t)

D 2(r+s + t)

6. The diagram shows a circle with centre O. If

PQ is a diameter of the circle, then the value off, in

degrees, is

A 37

B 39

C 42

D 51

7. In the diagram, O is the centre of a circleandROSis a straight line. The value ofm + n, in

degree, is

A 105

B 115

C 125

D 130

8. In the diagram,LOMis a diameter of a

circle. The value ofp, in degrees, is

A 20

B 30

C 35

D 40

9. In the diagram, O is the centre of a circle.

The value ofx +y, in degrees, is

A 100

B 110

C 120

D 140

10. In the diagram,HOKis a diameter of acircle. IfHL = 5 cm andLK= 12 cm, then the

radius, in cm, of the circle is

A 5.5B 6.5

C 7.5

D 13



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11. The diagram shows a circle. The minor arc

XYand the minor arc YZhave the same length. Theanglesp, q, rands are equal except

A p

B q

C r

D s

12. The diagram shows a circle with centre O.

POSis a diameter of the circle. The value ofx, in

degrees, is

A 30

B 35

C 40D 45

13. In the diagram, GLJandHLKare straight

lines. The value ofp + q+ r, in degrees, is

A 102

B 104

C 118

D 120

14. In the diagram,KHL is a straight line.

Which of the following sums of angles is equal to

180?

A p + r

B q + s

C q + t

D r+ u

15. In the diagram, QSTis a straight line andRS

=RT. The value off, in degrees, is

A 45

B 54

C 58

D 63

16. The diagram shows a semicircle with centreO. The value ofy, in degree, is

A 30

B 40

C 50

D 70



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17. In the diagram, O is the centre of a circle.The value ofx, in degrees, is

A 56

B 66

C 74

D 87

18. In the diagram,PQT,PLR and QLSare

straight lines. The value ofm, in degrees, is

A 56

B 65

C 73

D 83

19. In the diagram, O is the centre of a circle.

The value oftis

A 110

B 120

C 140

D 160

20. In the diagram,PQ is a diameter of a circle

with centre O. The value ofgis

A 90

B 105

C 115

D 150


Review Exercise 28 Objective)

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