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What is the area of a circle with a radius of 5 units?

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Question: What is the area of a circle with a radius of 5 units?

Options:

  1. 25π
  2. 50π
  3. 75π
  4. 100π

Correct Answer: 25π

Solution: 

The area of a circle is given by the formula A = πr². For r = 5, A = π(5)² = 25π.

What is the area of a circle with a radius of 5 units?

Practice Questions

Q1
What is the area of a circle with a radius of 5 units?
  1. 25π
  2. 50π
  3. 75π
  4. 100π

Questions & Step-by-Step Solutions

What is the area of a circle with a radius of 5 units?
  • Step 1: Understand the formula for the area of a circle, which is A = πr².
  • Step 2: Identify the radius of the circle. In this case, the radius (r) is 5 units.
  • Step 3: Substitute the radius into the formula. Replace r with 5 in A = πr², so it becomes A = π(5)².
  • Step 4: Calculate (5)², which is 25.
  • Step 5: Now, substitute back into the formula. A = π(25).
  • Step 6: The area of the circle is 25π square units.
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