Finding the Circumference of a Circle Using the Diameter

The video tutorial explains how to calculate the circumference of a circle given its diameter. It begins by defining the diameter as a line passing through the center of the circle from one edge to the other. Using the formula for circumference, which is pi times the diameter, the tutorial demonstrates the calculation with pi approximated as 3.14 and a diameter of 15 centimeters. The result is a circumference of 47.1 centimeters. The video also clarifies that the circumference is the distance around the circle, akin to fencing it.

What is the result of the circumference calculation for the given diameter?

What does the circumference represent in relation to the circle?