Waec Mathematics Past Questions and Answers

Question 576:

• WAEC 1998

In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50^o. Use the diagram to answer question below. (take π = 3.142)
Calculate correct to one decimal place, the length of arc PQ.

A. 175.0cm
B. 157.1cm
C. 37.7cm
D. 11.0cm
E. 3.1cm

Question 577:

• WAEC 1998

In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50^o. Use the diagram to answer question below. (take π = 3.142)
Calculate, correct to three significant figures, the area of sector OPQ

A. 3.403cm²
B. 5.350cm²
C. 10.99cm²
D. 157.1cm²
E. 175.0cm²

Question 578:

• WAEC 1998

Calculate the perimeter of the trapezium PQRS

A. 24cm
B. 36cm
C. 48cm
D. 72cm
E. 520cm

Question 579:

• WAEC 1998

The length of an arc of a circle of radius 5cm is 4cm. Find the area of the sector

A. \(1\frac{3}{5}cm^2\)
B. 2cm²
C. 8cm²
D. 10cm²
E. 20cm²

Question 580:

• WAEC 1998

The pie chart above show the distribution of how students travelled to a certain school on a particular day. Use this information to answer the question below
If a hundred students travelled by bus, find the total number of students in the school

A. 300
B. 400
C. 500
D. 600
E. 750