數學試卷答案 – St. Stephen’s Girls’ College Form 1 Math Final Exam 2019-20

試卷答案

Section A

  1. a) -3x and 4x
    b) -5
  2. 7b – 4a
  3. 90
  4. 5
  5. a) 384cm3
    b) 10
  6. C
  7. A
  8. 2
  9. 36 sq. units
  10. -1
  11. 10 sq. units
  12. 4
  13. 2
  14. (-5, -1)
  15. (11, 8)
  16. 6
  17. x = 310°
    y = 98°
  18. 60°
  19. 135°
  20. 60°
  21. ΔABC ≅ ΔCDA   or
    ΔACD ≅ ΔCAB
    Reason: RHS
  22. ΔDEF ≅ ΔPRQ
    Reason SAS

Section B

  1. a) 7y – 4 ≤ 16
    b) it is possible
  2. $264
  3. a) Mark C, D and F correctly
    b) i) Join the 4 vertics
        ii) 2
    c) G is reflected in the x-axis to A.  or
    G is translated 6 units upwards to A.
  4. a) i) Plot A and B correctly.

        ii) 9
    b) -8 and -1
  5. a) 66 cm2
    b) i) 462 cm3
        ii) Agree
  6. a) i) 9
        ii) (0, 8)
    b) 107.5 sq. units
    c) 50 sq. units
  7. a) –
    b) 64°
  8. a) –
    b) CB is not perpendicular to BD.

St. Stephen’s Girls’ College Form 1 Math Final Exam 2019-20 試卷

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