1990 - WAEC Mathematics Past Questions and Answers - page 4
31
In the diagram above PS||RQ, |RQ| = 6.4cm and perpendicular PH = 3.2cm. Find the area of SQR
A
5.12cm2
B
9.60cm2
C
10.24cm2
D
20.48cm2
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32
Which angle is equal to ∠VWZ?
A
∠VXZ
B
∠VYX
C
∠XZW
D
∠YXZ
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33
Which triangle is equal in area to ΔVWZ
A
ΔVXZ
B
ΔVYZ
C
ΔXYV
D
ΔWYV
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34
In the diagram above, PQRS s a cyclic quadrilateral, ∠PSR = 86o and ∠QPR = 38o. Calculate PRQ
A
58o
B
53o
C
48o
D
43o
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35
In the diagram below, O is the center of the circle if ∠QOR = 290o, find the size ∠QPR
A
110o
B
70o
C
55o
D
35o
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36
In the diagram above, PQ is a tangent at T to the circle ABT. ABC is a straight line and TC bisects ∠BTO. Find x.
A
20o
B
30o
C
35o
D
40o
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37
Which of the sketches above gives a correct method for constructed an angle of 120o at the point P?
A
I only
B
II only
C
III only
D
I and II only
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38
Use mathematical table to evaluate (cos40° - sin30°)
A
-0.2660
B
-0.0266
C
0.0266
D
0.2660
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39
If the shadow of a pole 7m high is 1/2 its length what is the angle of elevation of the sun, correct to the nearest degree?
A
90o
B
63o
C
60o
D
26o
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40
From the top of a building 10m high, the angle of depression of a stone lying on the horizontal ground is 69o. Calculate ,correct to one decimal place, the distance of the stone from the foot of the building
A
3.6m
B
3.8m
C
6.0m
D
9.3m
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