Waec 2002 Mathematics Past Questions And Answers
In the diagram O and O' are the centres of the circles radii 15cm and 8cm respectively. If PQ = 12cm, find |OO'|.
- A. 8.46cm
- B. 19.04cm
- C. 20.81cm
- D. 26.16cm
Calculate and correct to two significant figures, the percentage error in approximating 0.375 to 0.4
- A. 2.0
- B. 2.5
- C. 6.6
- D. 6.7
Simplify \(\frac{2^{\frac{1}{2}}\times 8^{\frac{1}{2}}}{4}\)
- A. 1
- B. 2
- C. 4
- D. 16
Factorize m(2a-b)-2n(b-2a)
- A. (2a-b)(2n-m)
- B. (2a+b)(m-2n)
- C. (2a-b)(m+2n)
- D. (2a-b)(m-2n)
Find the value of x in 0.5x + 2.6 = 5x + 0.35
- A. 0.5
- B. 2
- C. 2.6
- D. 5
In the diagram, |SR| = |RQ| and ∠PRQ = 58° ∠VQT = 19°, PQT, SQV and PSR are straight lines. Find ∠QPS
- A. 42°
- B. 39°
- C. 38°
- D. 30°
A right pyramid is on a square base of side 4cm. The slanting side of the pyramid is \(2\sqrt{3}\) cm. Calculate the volume of the pyramid
- A. \(5\frac{1}{3}cm^3\)
- B. \(10\frac{2}{3}cm^3\)
- C. \(16cm^3\)
- D. \(32cm^3\)
The volume of a cylinder of radius 14cm is 210cm3. What is the curved surface area of the cylinder?
- A. 15cm2
- B. 30cm2
- C. 616cm2
- D. 1262cm2
The following data gives the lengths, in cm, of 30 pieces of iron rods :
45 55 65 60 61 68 59 54 64 76 50 68 72 68 80 67 70 62 79 67 64 63 71 59 64 53 57 74 55 57
(a) Using class intervals of 45 - 49, 50 - 54, 55 - 59, ... construct a frequency table of the data.
(b) Draw the histogram for the distribution
(c) Calculate the mean of the distribution
(d) What is the probability of selecting an iron rod whose length is in the modal class?
View Discussion (0)WAEC 2002 THEORY.jpg)
The base diameter of a cone is 14cm, and its volume is 462 cm3. Find its height. [Taken \(\pi = \frac{22}{7}\)]
- A. 3.5cm
- B. 5cm
- C. 7cm
- D. 9cm