The area of a circle is 38.5 sq. cm. Its circumference (in

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The area of a circle is 38.5 sq. cm. Its circumference (in cm) is (use π = 22/7) :

Using Rule 14, We know that Area of circle = πr²
According to question, πr² = 38.5

⇒ r² =	38.5	× 7 = (3.5)²
	22

⇒ r = 3.5 cm

∴ Circumference of circle = 2πr = 2 ×	22	× 3.5 = 22 cm
	7