Question

If a circle has a diameter of 4 inches, what is the circumference?

Answer 1

`c=12.56`

Explanation:

The circumference of a circle is given by
`c=pid`
Where `c` is the circumference, `pi` is a number and its approximate value is 3.14 and `d` is its diameter.
`implies c=pi4=3.14*4=12.56` inches
`implies c=12.56` inches

Answer 2

`12.56` `"in"^2`

Explanation:

We know that the diameter is `4` inches. The circumference can be got by

`color(blue)("Circumference"=pixx"Diameter"`

So,

`rarr3.14*4`

`color(green)(rArr12.56` `color(green)("in"^2`

Hope that helps!!! ☺•☻