Question

LOOK AT THE IMAGE BELOW


PLEASE HELP ASAP

Answer 1

13.
`12.88m`

14.
`10ft`

Explanation:

To calculate the circumference, use the following formula, where
`d` is the diameter:

`C = \pi d\\C = 3.14159 * 4.1 = 12.88m`

To find the arc length, use the following formula, where
`r` is radius and
`\theta` is the angle in radians:

`s = r\theta`

Before you plug in any values, convert the angle from degrees to radians using the following formula, where x is the angle in degrees:

`\theta = (x)/(180)\pi\\\theta = (144)/(180)\pi\\\theta \approx 2.5`

Now plug in your values:

`s = 4 \cdot 2.5\\s = 10ft`