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Class 6 Maths — Perimeter and area

Find the perimeter and the area of rectangles, squares and shapes built from them, and measure area by counting squares.

Name: ________________________

  1. 1.A shape drawn on squared paper covers 12 full squares and 6 half squares. What is its area, in squares?

  2. 2.A rectangle has a perimeter of 30 cm and a length of 9 cm. How wide is it, in centimetres? Give just the number.

  3. 3.Match each square to its area.

    • side 2
    • side 3
    • side 5
    • side 6
    • side 9
    • 9
    • 36
    • 81
    • 25
    • 4

  4. 4.A square has sides of 7 cm. What is its area, in square centimetres? Give just the number.

  5. 5.Which of these rectangles has the largest area?

    • a) 7 by 4
    • b) 6 by 5
    • c) 9 by 2
    • d) 8 by 3

  6. 6.An L-shape is made from a rectangle 10 cm by 4 cm with a square of side 3 cm cut out of one corner. What is its area, in square centimetres? Give just the number.

  7. 7.Every rectangle here is measured in centimetres. Sort each one by whether its perimeter is below 20 or above 20.

    Groups: Perimeter below 20 · Perimeter above 20

    • 3 by 5
    • 6 by 6
    • 5 by 6
    • 2 by 6
    • 4 by 7
    • 1 by 8

  8. 8.A rectangle has an area of 48 square centimetres and a length of 8 cm. How wide is it, in centimetres? Give just the number.

Answer key — Class 6 Maths — Perimeter and area

  1. 1. 15
  2. 2. 6
  3. 3. side 2 → 4; side 3 → 9; side 5 → 25; side 6 → 36; side 9 → 81
  4. 4. 49
  5. 5. b) 6 by 5
  6. 6. 31
  7. 7. 2 by 6 → Perimeter below 20; 3 by 5 → Perimeter below 20; 4 by 7 → Perimeter above 20; 5 by 6 → Perimeter above 20; 1 by 8 → Perimeter below 20; 6 by 6 → Perimeter above 20
  8. 8. 6