(4)
AY = 5.6cm
(6)
x = 1 or x = 1/2
(8)
a=4
(15)
7.5cm
(18)
20cm2
(19)
7:5
(20)
10cm2
(30)
(ii), (iv), (v), (vi), (viii) are triplets and other are not
(31)
(a)
12
(32)
(a)
5
(33)
(a)
4
(34)
17m
(35)
13km
(38)
12cm
(39)
AB = 4
(48)
1.4m
2 cm
(b)
5
2 Unit
2 cm
(b)
4
2 Unit
3 cm
(b)
5/2
3 Unit
(36)
4cm
3 cm, AC = 2
(37)
13m
5 cm, BC = 10cm
TOUCHING CIRCLES I
(1)
B
(2)
D
(3)
A
(4)
A
(5)
D
(6)
A
(7)
C
(8)
A
(9)
A
(10)
A
(11)
D
(12)
B
(13)
B
(14)
D
(15)
B
(16)
C
(17)
D
(18)
C
(19)
16cm
(20)
A
(21)
C
(22)
D
(23)
B
(24)
B
(25)
C
(26)
A
(27)
C
(28)
D
(29)
A
(30)
D
(31)
D
(32)
B
(33)
A
(34)
C
(35)
A
(36)
B
(37)
D
(38)
C
(39)
B
(40)
D
(41)
A
(42)
C
(43)
B
(44)
A
(45)
C
(1)
4cm, 3cm, 5cm
(3)
AB = 8cm, BC = 9.8cm, AC = 8.5cm, Perimeter = 26cm
(7)
AB = 16cm
(8)
1.75cm
(12)
CD = 5cm
(13)
QR = 9cm
II (2)
361
4cm
(9)
4 10 cm