1998
In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50o. Use the diagram to answer question below. (take π = 3.142).Calculate, correct to three significant figures, the area of sector OPQ
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1998 WAEC SSCE Mathematics Past Questions
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1998
In the diagram O is the center of circle PRQ. The radius is 3.5cm and ∠POQ = 50o. Use the diagram to answer question below. (take π = 3.142).Calculate correct to one decimal place, the length of arc PQ.
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1998
In the diagram PQ is a diameter of circle PMQN center O, if ∠PQM = 63o, find ∠MNQ.
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1998
If the exterior angles of quadrilateral are yo, (y + 5)o, (y + 10)o and (y + 25)o, find y
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1998
In the diagram, O is the center of the circle and the reflex angle ROS is 264o. Find ∠RTS.
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1998
A ladder 5cm long long rest against a wall such that its foot makes an angle 30o with the horizontal. How far is the foot of the ladder from the wall?
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1998
Find the value of X if \(cos x = \frac{5}{8}for 0^o\le X\le 180^o\)
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1998
In \(sin(X+30)^o=cos40^o\),find X
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1998
In the diagram, PQ||SR. Find the value of Z.
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1998
In ∆PQR. ∠PQR is a right angle. |QR| = 2cm and ∠PRQ = 60o. Find |PR|.
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1998
A box contain 2 white and 3 blue identical balls. If two balls are picked at random, one after the other, without replacement, what is the probability of picking two balls of different colours?
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1998
The values of x when y = -1 are approximately
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1998
The graph of the quadratic expression
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1998
In the diagram above, the area of triangle ABC is 35cm2, find the value of y.
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1998
A die with faces numbered 1 to 6 is rolled once. What is the probability of obtaining 4?
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1998
The following numbers represent a set of scores for a class of 32 students, where the maximum score possible was 12: 6, 5, 9, 4, 4, 8, 7, 5, 6, 3, 2, 5, 4, 6, 9, 10, 4, 3, 2, 3, 4, 6, 8, 7, 4, 2, 1, 8, 7, 7, 6, 11. What…
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1998
Express as a single fraction: \(\frac{x}{x-2}-\frac{x+2}{x+3}\)
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1998
In the diagram above, O is the center if the two concentric circle of radii 13cm and 10cm respectively. Find the area of the shaded portion in the sector with angle 1200 at the center.
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1998
The radius of a geographical globe is 60cm. Find the length of the parallel of latitude 60oN
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1998
Given that \(\frac{6x-y}{x+2y}=2\), find the value of \(\frac{x}{y}\)
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