1998 - WAEC Mathematics Past Questions and Answers - page 5
41
In the diagram PQ is a diameter of circle PMQN center O, if ∠PQM = 63o, find ∠MNQ
A
58.5o
B
44o
C
35o
D
31.5o
correct option: e
Users' Answers & Comments42
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.
Calculate correct to one decimal place, the length of arc PQ.
A
175.0cm
B
157.1cm
C
37.7cm
D
11.0cm
correct option: e
Users' Answers & Comments43
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
Calculate, correct to three significant figures, the area of sector OPQ
A
3.403cm2
B
5.350cm2
C
10.99cm2
D
157.1cm2
correct option: b
Users' Answers & Comments44
Calculate the perimeter of the trapezium PQRS
A
24cm
B
36cm
C
48cm
D
72cm
correct option: c
Users' Answers & Comments45
The length of an arc of a circle of radius 5cm is 4cm. Find the area of the sector
A
\(1\frac{3}{5}cm^2\)
B
2cm2
C
8cm2
D
10cm2
correct option: d
Users' Answers & Comments46
The pie chart above show the distribution of how students travelled to a certain school on a particular day. Use this information to answer the question below
If a hundred students travelled by bus, find the total number of students in the school
If a hundred students travelled by bus, find the total number of students in the school
A
300
B
400
C
500
D
600
correct option: b
If X represent the total number of students
(\frac{90}{360}\times X=100)(students traveling by bus)
(X=\frac{100\times 360}{90}=400)
47
The pie chart above show the distribution of how students travelled to a certain school on a particular day. Use this information to answer the question below
What percentage, to the nearest whole number, of tghe students travelled to school on foot?
What percentage, to the nearest whole number, of tghe students travelled to school on foot?
A
24%
B
23%
C
20%
D
15%
correct option: a
Users' Answers & Comments48
The diagram above is a rectangle. If the perimeter is 36m, find the area of the rectangle
A
\(64m^2\)
B
\(65m^2\)
C
\(84m^2\)
D
\(124m^2\)
correct option: b
Users' Answers & Comments49
In \(\triangle PQR\). T is a point on QR such that \(\angle QPT = 39^o and \angle PTR = 83^o. Calculate \angle PQT\)
A
\(34^o\)
B
\(44^o\)
C
\(45^o\)
D
\(97^o\)
correct option: b
Users' Answers & Comments50
Find the value of x in the diagram above
A
8.0cm
B
6.8cm
C
6.6cm
D
6.5cm
correct option: e
Users' Answers & Comments