Waec Mathematics Past Questions and Answers

Question 586:

• 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 587:

• 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 588:

• 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

Question 589:

• WAEC 1998

P varies inversely as Q. The table above shows the value of Q for some selected values of P
What is the missing value of Q in the table?

A. 4
B. 9
C. 15
D. 16
E. 144

Question 590:

• WAEC 1998

Three of the angles of a hexagon are each X^o. The others are each 3X^o. Find X

A. 30^o
B. 40^o
C. 60^o
D. 80^o
E. 120^o