Waec Mathematics Past Questions and Answers

Question 221:

• WAEC 1991

Find the area of an equivalent triangle of side 16cm

A. 64√3cm²
B. 72√3cm²
C. 96cm²
D. 128√3cm²
E. 128cm²

Question 222:

• WAEC 1991

In the diagram above, PQ and XY are two concentric arc; center O, the ratio of the length of the two arc is 1:3, find the ratio of the areas of the two sectors OPQ and OXY

A. 1:3
B. 1:6
C. 1:9
D. 2:3
E. 4:9

Question 223:

• WAEC 1991

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cmIf the area of triangle DCF = 24cm², find the area of the quadrilateral ABCD.

A. 24cm²
B. 48cm²
C. 80cm²
D. 96cm²
E. 120cm²

Question 224:

• WAEC 1991

In the diagram above , |AD| = 10cm, |DC| = 8cm and |CF| = 15cm. Which of the following is correct?

A. Area BCF = Area DCF
B. Area ADE = Area ADF
C. Area ADE = Area DCFE
D. Area CBF = Area DABC
E. Area DABO = Area CFEO

Question 225:

• WAEC 1991

Simplify :
(i) \(2\frac{2}{3} - (2\frac{1}{2} - 1\frac{4}{5})\)
(ii) \(\frac{3.25 - 1.64}{2.47 - 2.01}\)