Finding the Circumference of a Circle

This video tutorial explains how to find the circumference of a circle using the diameter or radius. It introduces the concept of circumference as the boundary of a circle and highlights the importance of the irrational number Pi (π) in these calculations. The video demonstrates that the diameter fits around the circumference π times, leading to the formula π times diameter. It also covers the alternative formula using the radius, which is half the diameter. The tutorial concludes with practice questions for viewers to apply their learning.

Describe the significance of the number π in relation to circles.

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What is the formula for finding the circumference of a circle using the diameter?

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