Question

Pls help
round to the nearest tenth, if needed.

Answer 1

`\pi` or 3.1

Explanation:

The total area of the circle is
`3^2\pi`. The central angle of the shaded region is 40 degrees so we have to multiply
`3^2\pi` by
`(40)/(360)` or
`(1)/(9)`. 3 squared is 9 so 9
`\pi` times
`(1)/(9)` is just equal to
`\pi`.
`\pi`=3.14159265... rounded to the nearest tenth is 3.1