Question

If the circumference of a circle is 308 cm then find the area of the circle?

A 9856 cm² Correct Answer Incorrect Answer
B 5544 cm² Correct Answer Incorrect Answer
C 7546 cm² Correct Answer Incorrect Answer
D 154 cm² Correct Answer Incorrect Answer

Solution

Let the radius of a circle = (r) cm Circumference of circle = 2πr According to the question ⇒ 2 x π x r = 308 ⇒ 2 x (22/7) x r = 308 ⇒ r = (308 x 7)/(22 x 2) ⇒ r = 49 cm Area of circle = πr2 Area of circle = 22/7 x 49 x 49 Area of circle = 7546 cm2

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