Question

The length of the curved line which forms the boundary of a circle is called ______ (ray or circumference)

Answer 1

Answer:

Circumference

Step-by-step explanation:

In geometry, the circumference is the perimeter of a circle or ellipse. It is the length of the curved line which forms the boundary of a circle. The formula of circumference of a circle is 2*π*r

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Answer 2

Answer:

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Step-by-step explanation:

A radius is a line segment that connects the centre to a point on the circle. A chord is a line segment that connects any two points on the (boundary of a) circle. The boundary of the circle is called the circumference (round border) of the circle XD