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

Answer:

25.1

Step-by-step 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:

$22=2(\frac{22}{7} )r$

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

$C=2(\frac{22}{7})7.5$

$C=47.1$

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

$47.1-22=25.1$