Question

Which shape's distance around the outer edge is 2πr?

Answer 1

A circle

Hope this helps! :)

Answer 2

Answer:

The shape's whose  distance around the outer edge is 2πr is:

                               Circle.

Step-by-step explanation:

We know that the circumference is the distance around a figure.

Circumference is the special case of perimeter.

We know that in a circle of radius r the circumference of the circle is given by:

   $\text{Circumference}=2\pi r$

which could also be written as:

  $\text{Circumference}=\pi d$

( where d is the diameter of the circle and it is twice the radius of the circle i.e.

            $d=2r$   )