Answer:
20π m or 62.83 m
Explanation:
The formula for Circumference is C = 2πr
All you need to find for the formula is the radius, which is half of the diameter.
[tex]r= \frac{1}{2}d[/tex]
[tex]r=(\frac{1}{2})(20)[/tex]
[tex]r=10[/tex]
Then plug the radius into the formula and solve for Circumference
[tex]C= 2\pi r[/tex]
[tex]C=2\pi (10)[/tex]
[tex]C=20\pi[/tex] or [tex]C= 62.83 m[/tex]
