Question

If the radius of a circle is r cm, what is the measure of its circumference? Write it.

Answer 1

Answer:

2 pie r

Step-by-step explanation:

Circumference= 2*pie*radius

                         = 2pie r

Answer 2

Answer: If the radius of a circle is r cm, the measure of its circumference is $2\pi r$

Step-by-step explanation: If the radius of a circle is r cm,  the measure of its circumference is $2\pi r$. where r is the radius of the circle

The value of pi is 3.14.

Circumference of a circle : Circumference of a circle is defined as the distance around the boundary of a circle .We can also say it as a perimeter of the circle .

Diameter of a circle :  Diameter of a circle is defined as the the length of the line starting from one point to another point on the circle and passing through the center of the circle  . It is twice the radius of the circle .It is denoted by D or d.

Diameter = 2× Radius

Radius of the circle : Radius of the circle is the distance from the center of the circle to any point on its circumference . It is denoted by r.

Radius = diameter/2

To know more about circle from the given link

https://brainly.in/question/252726

To know more about circumference of circle from the given link

https://brainly.in/question/49528800

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