Waec Mathematics Past Questions and Answers

Question 571:

• WAEC 1998

A chord of circle of radius 26cm is 10cm from the center of the circle. calculate the length of the chord

A. 16cm
B. 27.86cm
C. 32cm
D. 48cm
E. 55.72cm

Question 572:

• WAEC 1998

Two chords PQ and RS of a circle intersected at right angles at a point inside the circle. If ∠QPR = 35^o,find ∠PQS

A. 35^o
B. 45^o
C. 55^o
D. 70^o
E. 90^o

Question 573:

• WAEC 1998

In the diagram, O is the center of the circle and the reflex angle ROS is 264^o. Find ∠RTS

A. 48^o
B. 53^o
C. 66^o
D. 132^o
E. 192^o

Question 574:

• WAEC 1998

If the exterior angles of quadrilateral are y^o, (y + 5)^o, (y + 10)^o and (y + 25)^o, find y

A. 10^o
B. 20^o
C. 40^o
D. 60^o
E. 80^o

Question 575:

• WAEC 1998

In the diagram PQ is a diameter of circle PMQN center O, if ∠PQM = 63^o, find ∠MNQ

A. 58.5^o
B. 44^o
C. 35^o
D. 31.5^o
E. 27^o