Question

Please help me.......

Answer 1

`57(3)/(11)` = c

or

`57.\overline{27}` = c

Explanation:

We know that the diameter of a circle multiplied by
`\pi` is the circumference, so we can create this equation:

180 = c *
`\pi`

Your teacher told us to assume
`\pi` is 22/7, so we'll put that in

180 = c *
`(22)/(7\\)`

To get c by itself, we divide both sides by 22/7

`(180)/((22)/(7))` = c

Dividing by a number is the same as multiplying by its reciprocal, so we'll multiply 180 by 7/22

180 *
`(7)/(22)` = c

Evaluate

`(1260)/(22)` = c

`57(3)/(11)` = c

If you want a decimal instead:

`57.\overline{27}` = c