Waec Mathematics 1998 Past Questions and Answers

Question 51:

• WAEC 1998

Find the value of x in the diagram above

A. 8.0cm
B. 6.8cm
C. 6.6cm
D. 6.5cm
E. 5.6cm

Question 52:

• WAEC 1998

Find the angle x in the diagram above

A. 310^o
B. 230^o
C. 190^o
D. 130^o
E. 100^o

Question 53:

• WAEC 1998

The diagonal and one side of a square are x and y units respectively. Find an expression for y in terms of x

A. \(y=\frac{x}{2}\)
B. \(y\frac{x}{\sqrt{2}}\)
C. \(y=\sqrt{x}\)
D. \(y=\sqrt{\frac{x}{2}}\)

Question 54:

• WAEC 1998

Find the curved surface area of a cone of radius 3cm and slant height 7cm (\(take \pi = \frac{22}{7}\)

A. \(22cm^2\)
B. \(44cm^2\)
C. \(66cm^2\)
D. \(132cm^2\)
E. \(198cm^2\)

Question 55:

• WAEC 1998

In the diagram above, |PQ| = |PR| = |RS| and ∠RSP = 35^o. Find ∠QPR

A. 70^o
B. 50^o
C. 45^o
D. 40^o
E. 35^o