find the circumference of a circle whose area is 1474km²
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Answer:
if π= 22/7 Answer :135.7 km
if π=π Answer: 136.1 km
Step-by-step explanation:
area of circle =πr^2
1474=22/7r^2
1474×7/22=r^2
469=r^2
r=21.6 km
circumstance of circle=2πr=2×22/7×21.6
=135.7km
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