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Area of a circle is 154 cm², find its circumference.

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Area of the circle = 154 cm²

πr²= 154

=22/7 × r² = 154

r² = 154 × 7/22

r² = 7 × 7

r² = (7)²

⇒ r = 7 cm

Circumference of the circle = 2πr

= 2 × 22/7 × 7 = 44 cm

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Area of a circle is 154 cm2, find its circumference.

Verified Answer

Area of a circle is 154 cm², find its circumference.