Question

What's the circumference of a
circle with a radius of 7 feet?
Use 3.14 for .
C = [?] feet
Enter the number that belongs in the green
box. Do not round your answer.
Hint: C = 2πr

Answer 1

Answer:

43.96ft

Step-by-step explanation:

In the hint, you are given the equation $C = 2\pi r$.

Here, $C$ is the circumference, $r$ is the radius, and $\pi$ is a constant (a value that doesn't change). In this question, you are told to assume the value of $\pi$ is 3.14.

You are told the radius is 7, therefore, $r$ = 7.

Now we have these values, let's substitute them into the equation:

$C = 2 * 3.14 *7$

For clarification, the stars mean multiplication.

So, the product of those values will give us our circumference, $C$.

In this case, you get an answer of 43.96ft.