circumference of a coke can,

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circumference

In this blog post, I’m going to teach you a quick little trick for calculating the circumference of a coke can. This is something that has been asked in countless math exams since long before calculators were invented. The problem is often phrased as “What’s the circumference of a circle with an area of 3 square inches?” or “How many feet are there around my house?” The answer to both questions is the same: Pi times the diameter squared. So if we know any one thing about our circle, we can calculate everything else! When we’re talking about the circumference of a circle, Pi is just another way to say “Pi” and it stands for π. If you know your math facts like I do, then you might see where this is going! The number π (or Pi) starts out as being equal to three point one four one five nine two six-thousandths..and goes on forever without repeating itself because it’s an irrational number. This means that calculating the length of any unit of measurement in miles or meters times pi will always give us our original value back no matter what size our unit was originally. Doesn’t that sound handy? This blog post has been edited over time by its author(s). For more details

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