Finding Radius or Diameter from Circumference Exercise

Finding Radius or Diameter from Circumference

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Finding Radius or Diameter from Circumference

Determine the radius or diameter of a circle when provided with its circumference. Practice working backward from circumference to find unknown dimensions.

Questions

  1. MultiChoice

    If the circumference of a circle is 31.4 cm, what is its radius? (Use pi = 3.14)

  2. MultiChoice

    If the circumference of a circle is 62.8 cm, what is its diameter? (Use pi = 3.14)

  3. MultiChoice

    A circle has a circumference of 18.84 cm. Find its radius. (Use pi = 3.14)

  4. MultiChoice

    The circumference of a round mirror is 43.96 cm. What is its diameter? (Use pi = 3.14)

  5. MultiChoice

    If the circumference of a circle is 15.7 cm, find its radius. (Use pi = 3.14)

  6. MultiChoice

    A ring has a circumference of 25.12 cm. What is its diameter? (Use pi = 3.14)

  7. MultiChoice

    If the circumference of a circular pool is 37.68 cm, what is its radius? (Use pi = 3.14)

  8. MultiChoice

    Find the diameter of a circle whose circumference is 50.24 cm. (Use pi = 3.14)

  9. MultiChoice

    If a circle has a circumference of 9.42 cm, what is its radius? (Use pi = 3.14)

  10. MultiChoice

    Determine the diameter of a circle with circumference 78.5 cm. (Use pi = 3.14)

  11. MultiChoice

    Find the radius of a circle with a circumference of 113.04 cm. (Use pi = 3.14)

  12. MultiChoice

    Find the diameter of a circle with a circumference of 125.6 cm. (Use pi = 3.14)