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If the diameter of a circle is 14 cm, what is its circumference? (2022)

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Question: If the diameter of a circle is 14 cm, what is its circumference? (2022)

Options:

  1. 44 cm
  2. 28 cm
  3. 14 cm
  4. 22 cm

Correct Answer: 44 cm

Exam Year: 2022

Solution: 

The circumference of a circle is given by C = πd, where d is the diameter. Here, C = π * 14 cm ≈ 44 cm.

If the diameter of a circle is 14 cm, what is its circumference? (2022)

Practice Questions

Q1
If the diameter of a circle is 14 cm, what is its circumference? (2022)
  1. 44 cm
  2. 28 cm
  3. 14 cm
  4. 22 cm

Questions & Step-by-Step Solutions

If the diameter of a circle is 14 cm, what is its circumference? (2022)
  • Step 1: Identify the formula for the circumference of a circle, which is C = Ï€d.
  • Step 2: Note the given diameter (d) of the circle, which is 14 cm.
  • Step 3: Substitute the diameter into the formula: C = Ï€ * 14 cm.
  • Step 4: Calculate the circumference using the value of Ï€ (approximately 3.14): C ≈ 3.14 * 14 cm.
  • Step 5: Perform the multiplication: C ≈ 43.96 cm.
  • Step 6: Round the result to the nearest whole number if needed: C ≈ 44 cm.
  • Circumference of a Circle – The circumference is the distance around a circle, calculated using the formula C = Ï€d, where d is the diameter.
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