Question

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

Answer 1

A circle

Hope this helps! :)

Answer 2

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

Circle.

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` )