Waec Mathematics 1993 Past Questions and Answers

Question 21:

• WAEC 1993

The sum of an interior angles of a regular polygon is 30 right angles. How many sides has the polygon?

A. 34 sides
B. 30 sides
C. 26 sides
D. 17 sides
E. 15 sides

Question 22:

• WAEC 1993

In the diagram above, |QR| = 12cm and |QS| = 10cm. If ∠PQR = 90°, ∠RSQ = 90° and PSQ is a straight line, find |PS|

A. 3.3cm
B. 4.4cm
C. 5cm
D. 5.5cm
E. 6.6cm

Question 23:

• WAEC 1993

In the diagram above, |PQ| = |QR|, |PS| = |RS|, ∠PSR = 30^o and ∠PQR = 80^o. Find ∠SPQ.

A. 15^o
B. 25^o
C. 40^o
D. 50^o
E. 55^o

Question 24:

• WAEC 1993

Two chords PQ and RS of a circle when produced meet at K. If ∠KPS = 31^o and ∠PKR = 42^o, find ∠KQR

A. 11^o
B. 73^o
C. 107^o
D. 138^o
E. 149^o

Question 25:

• WAEC 1993

In the diagram above, QRS is a straight line, QP//RT, PRQ = 56°, ∠QPR =84° and ∠TRS = x°. Find x

A. 28°
B. 40°
C. 44°
D. 84°
E. 124°