The circle formed by this ring has a diameter of 16.5 mm. What is the circumference of the ring

Question

asked Aug 28, 2024 32.9k views

1 Answer

Martin Grey · Answer 1 · 2024-09-02T04:45:21+0000

Answer:

51.8 mm^2

Explanation:

We know the formula for diameter is d = 2r.

Let's solve for r:

r = d/2 = 16.5 mm / 2 = 8.25 mm

We also know the formula for circumference which is
$c = 2\pi r$ .

Plugging in our known radius:

$c = 2\pi (8.25 mm) = 16.5\pi mm^(2)$ which is about 51.8 mm^2.