Waec Mathematics 1990 Past Questions and Answers

Question 26:

• WAEC 1990

calculate the surface area of a sphere of radius 7cm [Take π = 22/7]

A. 86cm²
B. 154cm²
C. 616cm²
D. 1434cm²
E. 4312cm²

Question 27:

• WAEC 1990

If the radius of the parallel of latitude 30°N is equal to the radius of the parallel of latitude θ°S, what is the value of θ?

A. 75^o
B. 60^o
C. 45^o
D. 30^o
E. 0^o

Question 28:

• WAEC 1990

A cylindrical container closed at both ends, has a radius of 7cm and height 5cm [Take π = 22/7]
Find the total surface area of the container

A. 35cm²
B. 154cm²
C. 220cm²
D. 528cm²
E. 770cm²

Question 29:

• WAEC 1990

A cylindrical container closed at both ends, has a radius of 7cm and height 5cm [Take π = 22/7]. What is the volume of the container?

A. 35cm³
B. 154cm³
C. 220cm³
D. 528cm³
E. 770cm³

Question 30:

• WAEC 1990

In the diagram above, |PQ| = |PR| = |RS| and ∠RPS = 32°. Find the value of ∠QPR

A. 72^o
B. 64^o
C. 52^o
D. 32^o
E. 26^o