Question
If the circumference of a circle is 220 cm then find the
area of the circle?Solution
Let the radius of a circle = (r) cm Circumference of circle = 2πr According to the question ⇒ 2 x π x r = 220 ⇒ 2 x (22/7) x r = 220 ⇒ r = (220 x 7)/(22 x 2) ⇒ r = 35 cm Area of circle = πr2 Area of circle = 22/7 x 35 x 35 Area of circle = 3850 cm2
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