Circumference and Area of a Circle

The video tutorial introduces basic math concepts, focusing on the circumference of a circle. It explains the formulas for calculating circumference using either the diameter or the radius. The tutorial provides examples to demonstrate these calculations, including converting radius to diameter and using pi as 3.14 for practical calculations.

If the diameter of a circle is 100, what is the circumference in terms of pi?

What is the approximate numerical value of the circumference if pi is taken as 3.14 and the diameter is 100?