Question

The circumference of a circle can be found using the formula C = 2r.

Which is an equivalent equation solved for r?

Answer 1

R=C/2(eliminate "2" from r by dividing both sides by 2)

Answer 2

`r=C/(2\pi)`

Explanation:

we know that

The circumference of a circle is equal to

`C=2\pi r`

where r is the radius of the circle

Solve for r------> means isolate the variable r

so

Divide by
`2\pi` both sides

`C/(2\pi)=2\pi r/(2\pi)`

`r=C/(2\pi)`