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Earn +20 ptsQ: Why did they need pi?
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Why do you need to know pi?
You should know pi because of math. You need pi when you are dealing with circles. The only thing you really need to know about pi is 3.14 though.
How many decimals of pi need?
You only need one decimal in pi (3.14). Pie goes on forever, if that's what you're asking.
What is the circumference of a circle with a diameter of 1 inch?
You need the formula circumference = pi x diameter pi = 3.14.. This is by the way the definition of the special number pi.
What is the pi conversion?
Pi has over two billion digits but you can use 3.14 or if you need a fraction 22/7
What will the circumference of the piece of felt need to be in order to cover the bottom of the can?
Circumference = 2*pi*radius or diameter*pi
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