What is the circumference of a circle with a diameter of 10 cm?

Practice Questions

Q1
What is the circumference of a circle with a diameter of 10 cm?
  1. 31.4 cm
  2. 20 cm
  3. 15.7 cm
  4. 25 cm

Questions & Step-by-Step Solutions

What is the circumference of a circle with a diameter of 10 cm?
  • Step 1: Understand that the circumference of a circle is the distance around it.
  • Step 2: Know the formula to calculate the circumference, which is C = πd, where C is the circumference and d is the diameter.
  • Step 3: Identify the diameter of the circle given in the question, which is 10 cm.
  • Step 4: Substitute the diameter into the formula: C = π(10).
  • Step 5: Calculate the value: C ≈ 3.14 × 10 = 31.4 cm.
  • Step 6: Conclude that the circumference of the circle is approximately 31.4 cm.
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