The boundary or perimeter of a circle is called the circumference.
The formula for calculating the length of the circumference is C = 2πr.
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The boundary which defines the area of a circle is known as the circumference of the circle.However if one wants to be precise, the circumference is the distance around the outside of the circle, not the circle itself. The term "circle" itself means the boundary. It has an interior and an exterior.A circle can be defined as all the points that are the same distance from a given point.
Oh, dude, the outside of a circle is called the circumference. It's like the circle's boundary or edge, you know? So, if you're ever lost in a circle, just look for the circumference to find your way out.
That sounds like the northern border of Delaware.
It is a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center).
In everyday use, the term "circle" may be used interchangeably to refer to either the boundary of the figure (known as theperimeter) or to the whole figure including its interior. However, in strict technical usage, "circle" refers to the perimeter while the interior of the circle is called a disk. The circumference of a circle is the perimeter of the circle (especially when referring to its length)