What is Pi in Math? & Finding Circumference of a Circle - [7-5-8]
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In this lesson, you will learn what the number Pi is and why is important in Math. We will then use the number Pi to find the circumference of a circle. It turns out that the ratio of the circumference to the diameter of any circle is always the same number, which is Pi - for any size circle! We can then use this do find the circumference, diameter, or radius of any circle we wish.
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