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What is the area of the base of a cylinder with radius 4 units? (2020)

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Question: What is the area of the base of a cylinder with radius 4 units? (2020)

Options:

  1. 16π
  2. 8π
  3. 12π
  4. 20π

Correct Answer: 16π

Exam Year: 2020

Solution: 

Area of base = πr² = π(4)² = 16π square units.

What is the area of the base of a cylinder with radius 4 units? (2020)

Practice Questions

Q1
What is the area of the base of a cylinder with radius 4 units? (2020)
  1. 16π
  2. 8π
  3. 12π
  4. 20π

Questions & Step-by-Step Solutions

What is the area of the base of a cylinder with radius 4 units? (2020)
  • Step 1: Identify the formula for the area of the base of a cylinder, which is A = πr².
  • Step 2: Determine the radius of the cylinder, which is given as 4 units.
  • Step 3: Substitute the radius into the formula: A = π(4)².
  • Step 4: Calculate (4)², which equals 16.
  • Step 5: Multiply 16 by π to find the area: A = 16π.
  • Step 6: State the final answer: The area of the base is 16π square units.
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