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If a circle has a circumference of 62.8 cm, what is its diameter?

Practice Questions

Q1
If a circle has a circumference of 62.8 cm, what is its diameter?
  1. 10 cm
  2. 20 cm
  3. 30 cm
  4. 40 cm

Questions & Step-by-Step Solutions

If a circle has a circumference of 62.8 cm, what is its diameter?
  • Step 1: Understand that the circumference (C) of a circle is related to its diameter (d) by the formula C = πd.
  • Step 2: Rearrange the formula to find the diameter: d = C / π.
  • Step 3: Substitute the given circumference (62.8 cm) into the formula: d = 62.8 / π.
  • Step 4: Use the value of π (approximately 3.14) to calculate the diameter: d = 62.8 / 3.14.
  • Step 5: Perform the division: 62.8 divided by 3.14 equals 20 cm.
  • Step 6: Conclude that the diameter of the circle is 20 cm.
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