Multiple choice

What would be the circumference of a circle whose area is 129514 sq. cm. ?

  1. 1914 cm.

  2. 1148.4 cm.

  3. 3828 cm.

  4. 1276 cm.

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Area = pi * r^2 = 129514. So r^2 = 129514/pi = 129514/3.14 = 41250 (approx). r = sqrt(41250) = 203.1 cm. Circumference = 2 * pi * r = 2 * 3.14 * 203.1 = 1275.6 cm, approximately 1276 cm. Option D is correct.