The area of a circle is 38.5 cm2. The circumference of the circle is

Let the radius if circle be r


Given, Area of circle = 38.5 cm2


Area of circle = πr2


πr2 = 38.5


Since π = 22/7


22/7 × r2= 38.5


r2 = 38.5 × (7/22)


r2 = 12.25


r = √12.25 = 3.5 cm


Radius of circle = 3.5 cm


Circumference of circle = 2πr


= 2 × 22/7 × 3.5 cm


= 22 cm


Circumference of the circle is 22 cm


Let the radius if circle be r


Given, Area of circle = 38.5 cm2


Area of circle = πr2


πr2 = 38.5


Since = 22/7


πr2 = 38.5


22/7 × r2 = 38.5


r2 = 12.25


r = √12.25 = 3.50cm


Radius of circle = 3.5 cm


Circumference of circle = 2πr


= 2 × 22/7 × 3.5


= 22 cm


Circumference of the circle is 22 cm

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