Multiple choice

Find the area of a circle whose radius is 7 cm (in cm)

  1. $\displaystyle 42\pi $
  2. $\displaystyle 49\pi $
  3. $\displaystyle 54\pi $
  4. $\displaystyle 60\pi $
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B Correct answer
Explanation

Area = pi * r^2 = pi * 7^2 = 49 * pi.

AI explanation

Using the formula for the area of a circle, Area equals pi times the square of the radius, we substitute the given radius of 7 cm. The calculation is pi multiplied by 7 squared, which yields 49 pi. The area of the circle is 49 pi.

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