Waec Mathematics 1992 Past Questions and Answers

Question 16:

• WAEC 1992

The curved surface area of a cylindrical tin is 704cm\(^2\). Calculate the height when the radius is 8cm. [Take π = 22/7]

A. 3.5cm
B. 7cm
C. 14cm
D. 28cm
E. 32cm

Question 17:

• WAEC 1992

The volume of a cone of height 9cm is 1848cm\(^3\). Find its radius. [Take π = 22/7]

A. 7cm
B. 14cm
C. 28cm
D. 98cm
E. 196cm

Question 18:

• WAEC 1992

The area of a parallelogram is 513cm\(^2\) and the height is 19cm. Calculate the base.

A. 13.5cm
B. 25cm
C. 27cm
D. 54cm
E. 108cm

Question 19:

• WAEC 1992

The diagram above shows the shaded segment of a circle of radius 7cm. if the area of the triangle OXY is 12\(\frac{1}{4}\)cm\(^2\), calculate the area of the segment
[Take π = 22/7]

A. 5/12cm²
B. 7/12cm²
C. 11/6cm²
D. 2 1/3cm²
E. 6 1/6cm²

Question 20:

• WAEC 1992

In the diagram above PQT is a tangent to the circle QRS at Q. Angle QTR = 48° and ∠QRT = 95°. Find ∠QRT

A. 48^o
B. 45^o
C. 37^o
D. 32^o
E. 30^o