Question

The circumference of the inner circle is 22 ft. The distance between the inner circle and the outer circle is 4 ft. By how many feet is the circumference of outer circle greater than the circumference of the inner​ circle? Use 22/7 for pi.

(Two circles have the same center. One circle lies inside of the other. The distance between the two circles is labeled 4 feet.
4 ft)
The circumference of outer circle is about
____ ft greater than the circumference of the inner circle.
​(Round to the nearest tenth as​ needed.)
HOW MANY FEET GREATER IS THE CIRCUMFERENCE OF THE OUTER CIRCLE THAN IT IS OF THE THE INNER CIRCLE *ROUND TO THE NEAREST TENTH*
answer fast please!

Answer 1

25.1

Explanation:

1. Find the radius of the inner circle

(the formula for the circumference of a circle is
`C=2\pi r`)

To find the radius of the inner circle, you would plug in the given information so that your equation looks like this:

`22=2((22)/(7) )r`

then solve for
`r`

`r=3.5`

2. add
`4` to the radius of the inner circle

`3.5+4=7.5`

3. find the circumference of the outer circle using
`7.5` as the radius

`C=2((22)/(7))7.5`

`C=47.1`

4. Subtract the circumference of the inner circle from the circumference of the outer circle

`47.1-22=25.1`