Multiple choice

If the circumference of a circle is 60cm more than its diameter. Then find the area of the circle? (\text{Taken } \pi = \frac{22}{7})

  1. $536 cm2$
  2. $1078 cm2$
  3. $616 cm2$
  4. $346.5 cm2$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Circumference = 2πr, Diameter = 2r. Given: 2πr = 2r + 60, so 2r(π-1) = 60, r = 30/(π-1) = 30/(22/7 - 1) = 30/(15/7) = 14 cm. Area = πr² = (22/7)×196 = 616 cm².