Waec Mathematics 1989 Past Questions and Answers

Question 36:

• WAEC 1989

The angle of a sector of a circle of diameter 8cm [Take x = 22/7].

A. 9³/₇cm²
B. 12⁴/₇cm²
C. 18⁵/₇cm²
D. 25¹/₇cm²
E. 31³/₇cm²

Question 37:

• WAEC 1989

In the diagram above, O is the center of the circle QRT and PT is a tangent to the circle at T. Calculate the angle x

A. 55^o
B. 40^o
C. 35^o
D. 25^o
E. 20^o

Question 38:

• WAEC 1989

Which of the following gives the point of intersection of the graph y = x² and y = x + 6 shown above?

A. (0,6), (3,9)
B. (-3, 0)(2,4)
C. (-2,4)(3,9)
D. (-2,3)(-3,2)
E. (-2,2)(3,6)

Question 39:

• WAEC 1989

A sector is cut off from a circle radius 8.2cm to form a cone, if the radius of the resulting cone is 3.5cm, calculate the curved surface area of the cone. [take π = 22/7]

A. 11.25cm²
B. 12.83cm²
C. 22.0cm²
D. 67.2cm²
E. 90.2cm²

Question 40:

• WAEC 1989

If logax = p, express x in terms of a and p

A. X = u + p
B. X = a/p
C. X = p
D. X = ap
E. X = a^p