Question

The circumference of a circle with a radius of 1 is 2π. Set up a proportion to find the circumference of a circle with a radius of 6.

Answer 1

The circumference of circle is 12π units.

Explanation:

Given the circumference of a circle with a radius of 1 units is 2π.

we have to find the circumference of a circle with a radius of 6 units.

we know that by proportion

`(Circumference)/(Radius)=(Circumference)/(Radius)`

`(2\pi)/(1)=(Circumference)/(6)`

`Circumference=2\pi* 6=12\pi units`

The circumference of circle is 12π units.

Answer 2

The circumference is equal to
`12\pi\ units`

Explanation:

we know that

by proportion

`(2\pi)/(1)(circumference)/(radius) =(x)/(6)(circumference)/(radius)\\ \\x=6*2\pi\\ \\x=12\pi\ units`