The area of circle is 616 cm².find it's circumference
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the formula for area of a circle is Pi R squared and the formula for the circumference is 2 Pi R
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hey mate:)
Answer:
88cm
Step-by-step explanation:
Given: 616 sq cm.
To Find: Its circumference
Solution: The area of a circle= πr2
=> 616 = πr2
=> r2 = 616/π
=> r2 = 616/22×7
=> therefore= π = 22/7
=> r2 = 28×7
=> r = √(28×7)= 14 cm
=> Circumference of a circle
= 2πr
=> 2 × 22/ 7 × 14
=> Circumference of circle = 88cm
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Hope this helps you:)
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