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What is the area of a circle with a diameter of 10 units? (Use π ≈ 3.14)

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Question: What is the area of a circle with a diameter of 10 units? (Use π ≈ 3.14)

Options:

  1. 78.5 square units
  2. 31.4 square units
  3. 50 square units
  4. 100 square units

Correct Answer: 78.5 square units

Solution: 

Area = πr². The radius r = diameter / 2 = 10 / 2 = 5 units. Area = 3.14 * 5² = 3.14 * 25 = 78.5 square units.

What is the area of a circle with a diameter of 10 units? (Use π ≈ 3.14)

Practice Questions

Q1
What is the area of a circle with a diameter of 10 units? (Use π ≈ 3.14)
  1. 78.5 square units
  2. 31.4 square units
  3. 50 square units
  4. 100 square units

Questions & Step-by-Step Solutions

What is the area of a circle with a diameter of 10 units? (Use π ≈ 3.14)
  • Area of a Circle – The area of a circle is calculated using the formula A = πr², where r is the radius.
  • Diameter and Radius Relationship – The radius is half of the diameter, which is crucial for calculating the area.
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