Waec Mathematics 1989 Past Questions and Answers

Question 11:

• WAEC 1989

The angle of elevation of X from Y is 30^o. If XY = 40m, how high is X above the level of Y?

A. 10m
B. 20m
C. 20√3m
D. 40m
E. 50m

Question 12:

• WAEC 1989

Instead of recording the number 1.23cm of the radius of a tube, a student recorded 1.32cm. Find the percentage of error, correct to one decimal place.

A. 6.8%
B. 7.3%
C. 9.6%
D. 14.4%
E. 15.4%

Question 13:

• WAEC 1989

In the diagram above, ∠SPR = P and ∠SQR = 2x. Find x in terms of P

A. X = p + 2
B. X = p - 2
C. X = p²
D. X = p/2
E. X = 2p

Question 14:

• WAEC 1989

In the diagram above ABDE and FCDE are parallelograms. If |FC| = 12.2cm and the height |PC| = 4.0cm, calculate the area of the parallelogram ABDE.

A. 3.05cm²
B. 8.20cm²
C. 16.20cm²
D. 24.40cm²
E. 48.8cm²

Question 15:

• WAEC 1989

Using the above graph, if 10^o < x < 60^o, what is the value of x for which sin x = cos x?

A. 0^o
B. 20^o
C. 30^o
D. 45^o
E. 50^o