Question

The circumference of a circle of radius r is ____​

Answer 1

Step-by-step explanation:

the circumference of the circle of radius R is 2 Pi R

Answer 2

The circumference of a circle of radius r is $2\pi r$.

• A circle's perimeter is denoted as its circumference. It is the circumference of the circle as a whole. A circle's circumference is calculated by multiplying its diameter by the constant that is $\pi$. This measurement of a circle's diameter is necessary for someone crossing a circular park or for enclosing a circle. The units for the circumference, which is a linear variable, are the same as those for the length.
• A circle is a closed, rounded shape whose border points are all equally spaced apart from the centre. The diameter and the area of a circle are the two very crucial measurements of a circle.
• The circumference of the circle is then calculated as $2\pi r$, where r is the radius of the circle.

Hence, the circumference of a circle of radius r is $2\pi r$.

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