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What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)

Practice Questions

Q1
What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)
  1. 50.24 cm²
  2. 25.12 cm²
  3. 12.56 cm²
  4. 31.36 cm²

Questions & Step-by-Step Solutions

What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)
  • Step 1: Identify the radius of the circle. The radius is given as 4 cm.
  • Step 2: Use the formula for the area of a circle, which is Area = πr².
  • Step 3: Substitute the value of π with 3.14 and the radius (r) with 4 cm into the formula: Area = 3.14 * (4)².
  • Step 4: Calculate (4)², which is 4 * 4 = 16.
  • Step 5: Now multiply 3.14 by 16: Area = 3.14 * 16.
  • Step 6: Perform the multiplication: 3.14 * 16 = 50.24.
  • Step 7: Write the final answer: The area of the circle is 50.24 cm².
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