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What is the area of a circle with a radius of 3 m? (2020)

Practice Questions

Q1
What is the area of a circle with a radius of 3 m? (2020)
  1. 28.26 m²
  2. 9.42 m²
  3. 18.84 m²
  4. 12.56 m²

Questions & Step-by-Step Solutions

What is the area of a circle with a radius of 3 m? (2020)
  • Step 1: Identify the formula for the area of a circle, which is Area = πr².
  • Step 2: Find the radius of the circle, which is given as 3 m.
  • Step 3: Substitute the radius into the formula: Area = π * (3)².
  • Step 4: Calculate (3)², which is 9.
  • Step 5: Now the formula looks like this: Area = π * 9.
  • Step 6: Use the approximate value of π (pi), which is about 3.14.
  • Step 7: Multiply 3.14 by 9 to get the area: Area = 3.14 * 9.
  • Step 8: Calculate 3.14 * 9, which equals approximately 28.26 m².
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