The word ‘circumference’ refers to the path or the boundary that surrounds a shape or a figure. In other words, the circumference is the perimeter of a 2D shape. A person walking across a circular path covers a distance equal to the circumference of a circle in one round. The circumference of a circle depends on the diameter of a circle and is equal to the product of $\pi$ and the diameter. The circumference and area are the two important concepts in circles and in
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