what is perimeter of circle
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Answer:
Circumference of Circle 2πr
Area of circle πr2
Perimeter of semi-circle πr
Area of semi-circle πr2/2
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In geometry, the circumference (from Latin circumferens, meaning "carrying around") is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment.
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