150
o
8 cm
8 cm
B
O
A
B
P
A
O
Q
C
C
30
o
O
D
A
10 cm
B
F
E
8
C
G
A
16
8
D
34 m
3 cm
1 cm
D
C
B
A
O
θ
D
C
B
A
8 cm
10 cm
5 cm
0.5 cm
10 cm
10 cm
10 cm
……….
14 cm
70 cm
……
8 cm
14 cm
9 cm
5 cm
Area and Volume (II)
Form 2
Section A
Multiple Choice Questions
The ratio of the radii of two circles is 2 : 3. Find the ratio of their circumference.
A.
3 : 2
B.
2 : 3
C.
D.
3
2
: 2
2
If the radius of a circle is increased by 1 cm, then its circumference is increased by
A.
1 cm
B.
2 cm
C.
cm
D.
cm
The sum of the areas of two circles is cm
2
. If the radius of one circle is 7 cm, find the radius of the other
circle.
A.
4 cm
B.
5 cm
C.
6 cm
D.
7 cm
1.
In the figure, the area of the smaller circle is
cm
2
. If the radius of the larger circle is 7 cm longer
than that of the smaller circle, find the area of the shaded region.
2.
Find the perimeter of the sector OAB in the figure..
A.
cm
B. cm
C.
cm
D. cm
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 Spring '08
 WOUTERS
 Algebra, 2 cm, 3mm, 9 cm

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