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In the diagram, find the size of the angle marked a°
A60o
B80o
C120o
D160o
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Question 22
waec2008
In the diagram, < QPR = 60o
< PQR = 50o
< QRS = 2xo
< SRP = 3xo
< UQP = yo and RS//TU
calculate y
A102o
B78o
C70o
D60o
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Question 23
waec2008
In the diagram, PX is a tangent to the circle and RST is an equilateral triangle. Calculate < PTS
A60o
B90o
C120o
D150o
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Question 24
waec2008
If the perimeter of \(\bigtriangleup\)PQR in thr diagram is 24cm, what is the area of \(\bigtriangleup\)PRS?
A19.5cm2
B15.0cm2
C13.0cm2
D9.3cm2
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Question 25
waec2008
In the diagram, O is the centre of the circle and PQRS is a cyclic quadrilateral. Find the value of x.
A25o
B65o
C115o
D130o
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Question 26
waec2008
In the figure /PX/ = /XQ/, PQ//YZ and XV//QR. What is the ratio of the area of XYZQ to the area of \(\bigtriangleup\)YZR?
A1:2
B2:1
C1:3
D3:1
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Question 27
waec2008
In the diagram, PQ//RS, QU//PT, and < PSR = 42º. Find angle x.
A84o
B48o
C42o
D32o
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Question 28
waec2008
In the figure shown, PQs is a straight line. What is the value of < PRQ?
A128o
B108o
C98o
D78o
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Question 29
waec2008
In the diagram above, PQRS is a rhombus. /PR/ = 10cm and /QS/ = 24cm. Calculate the perimeter of the rhombus.
A34cm
B52cm
C56cm
D96cm
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Question 30
waec2008
In the diagram, /PQ/ = /QR/ and /PR/ = /RS/ = /SP/, calculate the side of < QRS
A150o
B120o
C90o
D60o
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Question 31
waec2008
In the diagram, < QPR = 90o. If q2 = 25 - r2. Find the value of p
A3
B4
C5
D6
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Question 32
waec2008
Find the mean deviation of these numbers 10, 12, 14, 15, 17, 19.
A2.5
B2.6
C2.7
D2.8
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Question 33
waec2008
Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is picked at random from each of the two sets, what is the probability that their difference is 6 or 7?
A\(\frac{1}{256}\)
B\(\frac{1}{16}\)
C\(\frac{1}{8}\)
D\(\frac{1}{2}\)
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Question 34
waec2008
Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is picked at random from each of the two sets, what is the probability that their product is odd?
A1
B\(\frac{3}{4}\)
C\(\frac{1}{4}\)
Dzero
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Question 35
waec2008
Given the sets A = [2, 4, 6, 8] and B = [2, 3, 5, 9]. If a number is selected at random from set B, what is the probability that the number is prime?
A1
B\(\frac{3}{4}\)
C\(\frac{1}{2}\)
D\(\frac{1}{4}\)
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Question 36
waec2008
Solve the inequality 1 - 2x < - \(\frac{1}{3}\)
Ax < \(\frac{2}{3}\)
Bx < -\(\frac{2}{3}\)
Cx > \(\frac{2}{3}\)
Dx > -\(\frac{2}{3}\)
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Question 37
waec2008
Find the quadratic equation whose roots are c and -c
Ax2 - c2 = 0
Bx2 + 2cx = 0
Cx2 + 2cx + c2 = 0
Dx2 - 2cx + c2 = 0
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Question 38
waec2008
If p = \(\frac{1}{2}\) and \(\frac{1}{p - 1} = \frac{2}{p + x}\), find the value of x
A-2\(\frac{1}{2}\)
B-1\(\frac{1}{2}\)
C1\(\frac{1}{2}\)
D2\(\frac{1}{2}\)
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Question 39
waec2008
XY is a chord of circle centre O and radius 7cm. The chord XY which is 8cm long subtends an angle of 120o at the centre of the circle. Calculate the perimeter of the minor segment. [Take \(\pi = \frac{22}{7}\)]
A14.67cm
B22.67cm
C29.33cm
D37.33cm
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Question 40
waec2008
What is the length of an edge of a cube whose total surface area is X cm\(^2\) and whose volume is \(\frac{X}{2}\)cm\(^3\)?
