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If a circle has a radius of 5, what is its area?

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Question: If a circle has a radius of 5, what is its area?

Options:

  1. 25π
  2. 10π
  3. 20π
  4. 15π

Correct Answer: 25π

Solution: 

Area of a circle: A = πr² = π(5)² = 25π.

If a circle has a radius of 5, what is its area?

Practice Questions

Q1
If a circle has a radius of 5, what is its area?
  1. 25π
  2. 10π
  3. 20π
  4. 15π

Questions & Step-by-Step Solutions

If a circle has a radius of 5, what is its area?
  • Step 1: Understand that the area of a circle is calculated using the formula A = πr².
  • Step 2: Identify the radius of the circle, which is given as 5.
  • Step 3: Substitute the radius into the formula: A = π(5)².
  • Step 4: Calculate (5)², which is 25.
  • Step 5: Now the formula looks like A = 25π.
  • Step 6: The area of the circle is 25π.
  • Area of a Circle – The area of a circle is calculated using the formula A = πr², where r is the radius.
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