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In a circle with a radius of 4, what is the area of the circle?

  1. 12π

  2. 16

  3. 32π

  4. 64π

The correct answer is: 64π

The formula for finding the area of a circle is A = πr², where r represents the radius of the circle. In this question, the radius is given as 4, so the formula becomes A = π(4)² = 16π. The incorrect options, 12π and 32π, are obtained by either using the incorrect value of r or by performing incorrect calculations. Option B, 16, is the correct value for the radius squared, but it is missing the π component in the formula.