If the diameter of a circle is 14 cm, what is the circumference?

Practice Questions

Q1
If the diameter of a circle is 14 cm, what is the circumference?
  1. 44 cm
  2. 28 cm
  3. 22 cm
  4. 14 cm

Questions & Step-by-Step Solutions

If the diameter of a circle is 14 cm, what is the circumference?
  • Step 1: Understand that the diameter of the circle is given as 14 cm.
  • Step 2: Know the formula for the circumference of a circle, which is C = πd, where d is the diameter.
  • Step 3: Substitute the diameter into the formula: C = π(14).
  • Step 4: Use the approximate value of π (pi), which is about 3.14.
  • Step 5: Calculate the circumference: C ≈ 3.14 × 14.
  • Step 6: Perform the multiplication: 3.14 × 14 = 43.96 cm.
  • Step 7: Round the result to the nearest whole number, which is approximately 44 cm.
  • Circumference of a Circle – The circumference is calculated using the formula C = πd, where d is the diameter.
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