The radius of a circle is 4.5 in. Find the circumference to the nearest tenth

Question

asked Aug 16, 2021 27.8k views

2 Answers

Pwhitt · Answer 1 · 2021-08-20T22:47:38+0000

Answer: The Circumference is 9

Explanation:

To find the circumference, need this formula:

$c=2\pi r$

-Place the measurement of the radius onto that equation:

$c=2\pi 4.5$

Then, you solve:

$c=2\pi 4.5$

c=2 ×
$\pi$ ×
(4.5)

c=9 ×
$\pi$

28.27

-Round up to the nearest tenth

28.3