142*3.14*pi = 1933.46 (approx)
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Exactly 14 times ! 196 is 14 squared.
14 squared = 196, so you're looking for the sqrt of double that, ie 392, which is almost exactly 19.8
Any number, squared, is the number multiplied by itself. So 142 = 14*14. And that, is 196.
No, it is rational.
First convert the hours bit into minutes. There are 60 minutes in an hour. Therefore we multiply by 60 and this gives: 5x60 = 300. Next you add on the 14 minutes: 300+14 = 314 Therefore 5 hours and 14 minutes is equal to 314 minutes.