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Grade 9 · Area & Perimeter
Area & Perimeter of 2-D Shapes (Grade 9)
WORKSHEET
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  / 20

Answer all questions. Show all your working — marks are awarded for method as well as the final answer.

  1. 1
    Area of a rectangle 9 cm by 6 cm.
    (2)
  2. 2
    Perimeter of a rectangle 9 cm by 6 cm.
    (2)
  3. 3
    Area of a triangle, base 12 cm, height 7 cm.
    (2)
  4. 4
    Area of a parallelogram, base 9 cm, height 5 cm.
    (2)
  5. 5
    Area of a trapezium, parallel sides 8 cm and 12 cm, height 5 cm.
    (2)
  6. 6
    Area of a circle with radius 7 cm (π ≈ 3,14).
    (2)
    r = 7 cm
  7. 7
    Circumference of a circle with radius 7 cm (π ≈ 3,14).
    (2)
    r = 7 cmthe distance all the way around
  8. 8
    Area of a circle with diameter 10 cm (π ≈ 3,14).
    (2)
    d = 10 cm
  9. 9
    A 10 × 8 rectangle has a 3 × 2 piece cut out. Find the remaining area.
    (2)
  10. 10
    A shape is enlarged by scale factor 3. What happens to its area?
    (2)
TOTAL: 20 marks
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