pi to 5 decimal places = 3.14159
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it is impossible to know because no one has been able to find the last digit of pi yet 5 times pi is 15.708 to 3 decimal places.
Surface area of conical surface only is Pi*r*slope = Pi*5*7 = 109.956 Surface area including base is Pi*r*(slope+r) = Pi*5*(5+7) = 188.496 Answers rounded to third decimal.
3.141592654 * 5 = 15.70796327
I don't think there is such thing as 5 pied. Unless you mean "5 times pi", then the answer is yes. 'PI' and any multiple of it are irrational numbers.
Circumference is 2 times pi times radius, so the circumference of this circle is 2 times pi times 5, or 10 times pi. If a decimal answer is needed, pi is approximately 3.14, so C=31.4