數學試卷答案 – St. Stephen’s Girls’ College Form 2 Math Final Exam 2019-20

試卷答案

Section A

  1. \(\sqrt{\dfrac{3}{363}} , 0.6\)
  2. \(4\sqrt{2}\)
  3. \(\sqrt{13}\)
  4. \(4\sqrt{3}\)
  5. 48
  6. \(\dfrac{\sqrt{10}}{2}\)
  7. ΔABC: Yes, ΔPQR: Yes, ΔXYZ: No
  8. 156
  9. 56
  10. x = 30°
    y = 90°
  11. 15
  12. x = 30°
    y = 80°
  13. 15
  14. 684°
  15. 64.6°
  16. x = 7.71
    y = 24
  17. 0
  18. \(\dfrac{1}{tan\theta}\)
  19. 60°
  20. 25°
  21. 5 : 1
  22. Plan C
  23. 6 : 8 : 9
  24. 120 Japanese Yen

Section B

  1. 15
  2. 13 cm
  3. a) AD = 24, AB = 40
    b) Yes
  4. a) \(PS^{2} = 625-x^{2}\)
    b) \(PS^{2} = -1265+126x-x^{2}\)
    c) PS = 20
  5. a) 15°
    b) 45°
    c) 7.5 cm
  6. a) 30°
    b) 30°
    c) 120°
  7. a) \(\dfrac{3}{5}\)
    b) i) ∠BEF = θ
       ii) FB = 6 cm
  8. a) 30°
    b) \(\dfrac{5}{2}\)

St. Stephen’s Girls’ College Form 2 Math Final Exam 2019-20 試卷

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