What is the circumference of a circle that has a radius of 12 cm?

A. [tex]24\pi \, \text{cm}[/tex]
B. [tex]144\pi \, \text{cm}[/tex]
C. [tex]6\pi \, \text{cm}[/tex]
D. [tex]12 \, \text{cm}[/tex]



Answer :

To find the circumference of a circle, we use the formula:

[tex]\[ \text{Circumference} = 2 \pi r \][/tex]

where [tex]\( r \)[/tex] is the radius of the circle.

Given:
- Radius, [tex]\( r = 12 \)[/tex] cm

Now, substituting the given radius into the formula:

[tex]\[ \text{Circumference} = 2 \pi \times 12 \text{ cm} \][/tex]

[tex]\[ \text{Circumference} = 24 \pi \text{ cm} \][/tex]

Approximating [tex]\(\pi\)[/tex], we get the value:

[tex]\[ \text{Circumference} \approx 24 \times 3.14159 \text{ cm} \][/tex]

[tex]\[ \text{Circumference} \approx 75.39822368615503 \text{ cm} \][/tex]

Therefore, the circumference of the circle is approximately 75.39822368615503 cm.