Question

What is the circumference of a circle with a radius of 8cm? Express your answer in terms of pi

Answer 1

Answer:

$C = 16\pi$

Step-by-step explanation:

Ok, so the equation so find the circumference of a circle is C = 2$\pi r$

So we can fill in the variable for radius as we know it is 8. The equation show know look like this:

$C = 2\pi (8)$

Now we just need to multiply the numbers 2 and 8 together.

$C= 16\pi$

So, because we leave the answer in terms of pi, we're done! :)