Calculate Circle Circumference: Given Radius r=7 Units

To solve the problem of finding the circumference of a circle with radius $r = 7$, we will follow these steps:

• Step 1: Identify the given value of the radius.
• Step 2: Apply the formula for the circumference of a circle.
• Step 3: Calculate the result using known values.

Let's go through these steps in detail:

Step 1: The radius $r$ is given as $7$.

Step 2: The formula for the circumference of a circle is $C = 2\pi r$.

Step 3: Substitute the given radius into the formula:
$C = 2\pi \times 7 = 14\pi$

Using the value of $\pi \approx 3.14159$, we can calculate:

$C \approx 14 \times 3.14159 \approx 43.982$

Therefore, the circumference of the circle is approximately $43.982$.