Page 205 - Mathematics_Form_Two

Chapter name

Proportions needed are PQ , QR , 4. 15
PR AB BC 3
AC 5. 2
1
6. ∆ ABC  ∆ FDE ∆ , ABC  ∆ AMC 6. y = 4
(SSS). 7. 1,842,387
FOR ONLINE READING ONLY
7. ED 5cm= . 8. − 1

8. PQ 18dm,= QR = 24dm 9. x = 5

11. (a) BC= 20dm (d) AD 12dm= 10. (a) 23 (b) 178 Mathematics for Secondary Schools
5
(b) DE 8dm= (e) AB 35cm= (c) 3 (d) 95
8
(c) BD= 7dm (f) CE = 4cm
Exercise 4�2
12. (a) x= 12dm (b) y = 4cm . 2V

13. (a) ˆ ˆ 90 ,° YZ= 20cm, 1. R = 100I 8. r = π h
B= Z =
PT
BC= 6cm
2. r = C 9. h = 2s
ˆ
ˆ
(b) M = 22 ,° Z= 49 ,° XY = 2cm, 2π a
MN = 30cm 3. h = 2A 10. f = uv
ˆ
(c) XY = 5cm, , X = 53 ,° , b uv+
w
EF 10cm,= , DE 8cm= 4. p = Ev 11. f = Pw−
Pw+
ˆ
(d) ˆ Y = 37° . 100A 4 lπ 2
E =
5. p = 100 RT+ 12. f =
14. AE 13.5cm,= DE = 9 cm T 2
( A− 2 rπ 2 ) 9
15. (a) ∆ XOP  ∆ YOQ (AA Theorem) 6. h = 2 rπ 13. F = 3 C + 32

(b) OX = 5.25m, OQ 3m= 4T 2
7. l =
9

Chapter Four
Exercise 4�3
Exercise 4�1�
2
1. 2x + 5x+ 3
1. 2
2. 8x − 2 2x − 3
2. 40
3. y+ 6y
2
3. (a) 204 (b) 3

199
Student's Book Form Two

11/10/2024 20:14:33
MATHEMATIC F2 v5.indd 199
MATHEMATIC F2 v5.indd 199 11/10/2024 20:14:33