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Celeste International School

Grade 5 · Worksheet

2D shapes

Circles

Name: ______________________________Date: ______________Score: ______ / 20
  1. 1.

    What is the perimeter of a circle called?

    1. ARadius
    2. BDiameter
    3. CCircumference
    4. DCentre
  2. 2.

    What is the distance from the centre of a circle to a point on the circle called?

    1. ADiameter
    2. BRadius
    3. CCircumference
    4. DCentre
  3. 3.

    A straight line that joins two points on the circle and passes through the centre is called the...?

    1. ARadius
    2. BCircumference
    3. CDiameter
    4. DCentre
  4. 4.

    The diameter of a circle is twice the radius.

    True False
  5. 5.

    The radius is half of the diameter.

    True False
  6. 6.

    A circle has a radius of 3 cm. What is its diameter?

    cm
  7. 7.

    A circle has a radius of 4 cm. What is its diameter?

    cm
  8. 8.

    A circle has a radius of 5 cm. What is its diameter?

    cm
  9. 9.

    A circle has a diameter of 8 cm. What is its radius?

    cm
  10. 10.

    A circle has a diameter of 20 cm. What is its radius?

    cm
  11. 11.

    A circle has a radius of 2.5 cm. What is its diameter?

    cm
  12. 12.

    A circle has a diameter of 60 mm. What is its radius?

    mm
  13. 13.

    A circle has a radius of 6 cm. What is its diameter?

    cm
  14. 14.

    A circle has a diameter of 4 cm. What is its radius?

    cm
  15. 15.

    A circle has a radius of 10 cm. What is its diameter?

    cm
  16. 16.

    A diameter must pass through the centre of the circle.

    True False
  17. 17.

    Every point on a circle is the same distance from the centre.

    True False
  18. 18.

    Ajay ran in a straight line from the edge of a circular lawn to the centre. Which part of the circle did he run along?

    1. ADiameter
    2. BCircumference
    3. CRadius
    4. DCentre
  19. 19.

    Bryn ran all the way around the outside of the circular lawn. Which part of the circle did he run along?

    1. ARadius
    2. BCircumference
    3. CDiameter
    4. DCentre
  20. 20.

    Chris ran in a straight line from one side of the circular lawn, through the centre, to the other side. Which part of the circle did he run along?

    1. ARadius
    2. BDiameter
    3. CCircumference
    4. DCentre
Celeste International School

Answer key

2D shapes — Circles

  1. 1.C. Circumference
  2. 2.B. Radius
  3. 3.C. Diameter
  4. 4.True
  5. 5.True
  6. 6.6 cm
  7. 7.8 cm
  8. 8.10 cm
  9. 9.4 cm
  10. 10.10 cm
  11. 11.5 cm
  12. 12.30 mm
  13. 13.12 cm
  14. 14.2 cm
  15. 15.20 cm
  16. 16.True
  17. 17.True
  18. 18.C. Radius
  19. 19.B. Circumference
  20. 20.B. Diameter