Answer:
13. [tex]C=6\pi[/tex]
14. [tex]C=9\pi[/tex]
15. [tex]C=7\pi[/tex]
Step-by-step explanation:
To find the circumference of a circle, the formula is [tex]C=2\pi r[/tex], with "C" being the circumference and "r" being the radius.
In question 13, the radius (r) is shown as 3ft. When you put this into the equation, it should look like this:
[tex]C=2\pi (3)[/tex]
Simplify.
[tex]C=6\pi[/tex]
Follow the same steps in questions 14 and 15. In 14, 9 is the diameter, which makes the radius 4.5.
The final answers are shown above.
Have a good day!
