Page 228 - Mathematics_Form_Two

Chapter name

13. (a) 10.6m (c) − 0.8098

(b) 56 6′ (d) − 0.2588
°
14. 18.3 m (e) − 0.6293
(f) 1.1918
15. 66.9m 22. (a) 194 17 , ′ 345 43′
FOR ONLINE READING ONLY
°
°
16. 839.1 m
Mathematics for Secondary Schools 17. (a) PR = 5.7km (b) 6.2 km 23. (a) 7 ,5 , 172 55 , ′ ′ ° α ≈ ° ° 293° − 352 ,55 , ′
°
69 02 , ′ 290 58′
(b)
(c) α ≈
113 ,°
ˆ
°
29 42′
18. (a) SQR =

(b) QR = 3.8 m
°
°

(c) SP = 4.46 m
177 5 , ′
−
°
°
°
124 36′
°
19. (a) 6 (b) 124 36 , ′ 235 24 , ′ − 235 24 , ′
−
2
°
°
°
3 (c) − 340 29 , ′ − 160 29 , ′ 19 31, ′
(b)
4 − 199 31′
°
(c) 2 24. (a) sinθ = 0.9363

0.3511
− ( 1 22+ ) (b)cosθ = − − 0.3511
(d)
2 (c) tanθ = 2.6667
(e) 2 3
25. (a) sin238 =  − sin(58 )°
(f) 0
(b) cos( 263 )− °= − cos83°
22
cosα (c) y = 29 48′
°
20. (a) =
5
(c) tan( 36 )− °= − tan( 63 ) °
66
(b) =
tanα
3 26. (a) 147.3m
21. (a) − 0.2079 (b) 81.6m
(b) − 0.7193 27. 209.5m

222
Student's Book Form Two

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MATHEMATIC F2 v5.indd 222