數學試卷答案 – St. Stephen’s Girls’ College Form 2 Math Final Exam 2021-22 Paper 2

St. Stephen’s Girls’ College Form 2 Math Final Exam 2021-22 Paper 2

數學試卷答案:

1. a) No
   b) No
2. a) 6xy(3x+2y²)
   b) (5b – 7a)(9a – 1) or (7a – 5b)(1 – 9a)
3. P = 3
   Q = 0
4. 7 h
5. 1 : 8
6. 6 : 15 : 8
7. 0.2 km
8. \(b=\dfrac{5a-4c}{3}\)
9. \(\dfrac{11x}{12(x-5)}\) or \(-\dfrac{11x}{12(5-x)}\)
10. x = 3
    y = -2
11. $7
12. a = 4
    B = (2, 0)
13. x = 99°
14. 18
15. x = 10
16. ΔABC ~ ΔQPR
    Reason: ratio of 2 sides, inc. ∠
17. 22.4 cm
18. a) 196
    b) 195.77
    c) 195
19. a) 5
    b) 3
20. 21.6 s
21. \(\dfrac{1}{1200}\)
22. 12.5
23. 8 km
24. 6
25. a) No
    b) Yes
26. a) No
    b) Yes
    c) Yes
27. 13.2 cm
28. a) 52.0 cm
    b) 88.0 cm²
29. a) Yes
    b) Yes
30. 2 : 3
31. 88.0 m²
32. a) θ = 34.7°
    b) x = 13.2
33. 52°
34. 92.2 cm²
35. 96.5 m
36. 61.2 cm

St. Stephen’s Girls’ College Form 2 Math Final Exam 2021-22 Paper 2 試卷在此