Waec Mathematics Past Questions For Year 1989
Question 36
A sector is cut off from a circle radius 8.2cm to form a cone, if the radius of the resulting cone is 3.5cm, calculate the curved surface area of the cone. [take π = 22/7]
- A. 11.25cm2
- B. 12.83cm2
- C. 22.0cm2
- D. 67.2cm2
- E. 90.2cm2
Question 37
Which of the following gives the point of intersection of the graph y = x2 and y = x + 6 shown above?
- A. (0,6), (3,9)
- B. (-3, 0)(2,4)
- C. (-2,4)(3,9)
- D. (-2,3)(-3,2)
- E. (-2,2)(3,6)
Question 38
In the diagram above, O is the center of the circle QRT and PT is a tangent to the circle at T. Calculate the angle x
- A. 55o
- B. 40o
- C. 35o
- D. 25o
- E. 20o
Question 39
The angle of a sector of a circle of diameter 8cm is 135°. Find the area of the sector [Take pi = 22/7].
- A. 270
- B. 350
- C. 302
- D. 430
Question 40
Given that logp = 2 logx + 3logq, which of the following expresses p in terms of x and q?
- A. p = 5xq
- B. p = 6xq
- C. p = x2 + q3
- D. p = 2x + 3q
- E. p = x2q3
