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.
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From the centre of a circle to the outside edge is known as the radius.
It is the circle's circumference
The tangent line only touches the outside of a circle at one given point. So an outside line perpendicular to the circle's diameter at 90 degrees should do.
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.
The distance around the outside of a circle is called the Circumference.