ANSWER: approximately 18.84 meters
Explanation:
The most commonly used equation for circumference is C=2πr. Where c is the circumference, π is pi (or 3.14159...), and r is the radius.
In your equation, you are given diameter. Remember that the radius is half of the diameter. So, in this case, the radius, r, is half of 6, or 3 meters.
Now, substitute the radius into the equation for circumference, and you get:
C= 2π(3)
=approximately 18.84 meters
What you know have found is the distance around the circle.