Waec Mathematics Past Questions For Year 1989
Question 21
What angle represents grown up girls ? Correct to one decimal place
- A. 37.5o
- B. 26.7o
- C. 25.7o
- D. 20o
- E. 3.75o
Question 22
Solve the following equation: 6x\(^2\) - 7x - 5 = 0
- A. x = 1/2 or x = -21/2
- B. x = 1/3 or x = 21/2
- C. x = 1 2/3 or x = -1/2
- D. x = 12/3 or x = 1/2
- E. x = 5/6 or x = -1
Question 23
Calculate the surface area of a hallow cylinder which is closed at one end, if the base radius is 3.5cm and the height 8cm.[take π = 22/7]
- A. 126.5cm2
- B. 165cm2
- C. 176cm2
- D. 214.5cm2
- E. 253.5cm2
Question 24
In the diagram above, O is the center of the circle. Calculate the length of the chord AB if |OA| = 5cm, |OD| = 3cm and ∠AOD = ∠BOD
- A. 3cm
- B. 4cm
- C. 5cm
- D. 8cm
- E. 15cm
Question 25
In the diagram above O is the center of the circle, if ∠PAQ = 75o, what is the value of ∠PBQ?
- A. 15o
- B. 75o
- C. 105o
- D. 150o
- E. 210o
