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What is the area of a circle with a diameter of 16 cm? (Use π = 3.14) (2022)

Practice Questions

Q1
What is the area of a circle with a diameter of 16 cm? (Use π = 3.14) (2022)
  1. 201.06 cm²
  2. 100.48 cm²
  3. 50.24 cm²
  4. 25.12 cm²

Questions & Step-by-Step Solutions

What is the area of a circle with a diameter of 16 cm? (Use π = 3.14) (2022)
  • Step 1: Identify the diameter of the circle, which is given as 16 cm.
  • Step 2: Calculate the radius by dividing the diameter by 2. So, radius = 16 cm / 2 = 8 cm.
  • Step 3: Use the formula for the area of a circle, which is Area = πr².
  • Step 4: Substitute the value of π (3.14) and the radius (8 cm) into the formula: Area = 3.14 * (8 cm)².
  • Step 5: Calculate (8 cm)², which is 64 cm².
  • Step 6: Multiply 3.14 by 64 cm² to find the area: Area = 3.14 * 64 = 201.06 cm².
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