Multiple choice

If the circumference of a circle is 88 cm, find the area of the circle.

  1. 154 cm2

  2. 308 cm2

  3. 616 cm2

  4. 1078 cm2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Circumference = 2 * pi * r = 88. So, r = 88 / (2 * pi) = 44 / (22/7) = 14 cm. Area = pi * r^2 = (22/7) * 14 * 14 = 22 * 2 * 14 = 616 cm^2.

AI explanation

Using the circumference formula 2 times pi times radius equals 88, the radius is calculated as 14 cm. Applying the area formula, pi times r squared, gives 22/7 times 14 squared. This calculates to 22/7 times 196, resulting in 616 square cm.

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