Question The circumference of a circle is $$ 18 \pi \mathrm{~m} $$. Find its radius, in meters. Answer Attempt 1 out of 2 $$ r=\square \mathrm{m} $$

Question

UpStudy AI · Accepted Answer

To find the radius of a circle given its circumference, we can use the formula for the circumference of a circle:

$$
C = 2 \pi r
$$

where $$ C $$ is the circumference and $$ r $$ is the radius.

Given that the circumference $$ C = 18 \pi $$ m, we can set up the equation:

$$
18 \pi = 2 \pi r
$$

Now, we can solve for $$ r $$ by dividing both sides of the equation by $$ 2 \pi $$:

$$
r = \frac{18 \pi}{2 \pi}
$$

The $$ \pi $$ terms will cancel out:

$$
r = \frac{18}{2} = 9
$$

Thus, the radius $$ r $$ is:

$$
r = 9 \, \text{m}
$$

So the final answer is:

$$
r = 9 \, \text{m}
$$
The radius is 9 meters.

Question The circumference of a circle is \( 18 \pi \mathrm{~m} \). Find its radius, in meters. Answer Attempt 1 out of 2 \( r=\square \mathrm{m} \)