SOLUTION: Im not sure what is the square root of 147

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 Click here to see ALL problems on Square-cubic-other-roots Question 732701: Im not sure what is the square root of 147 Found 2 solutions by Alan3354, solver91311:Answer by Alan3354(34679)   (Show Source): You can put this solution on YOUR website!Im not sure what is the square root of 147 --------------- See if your calculator knows. Answer by solver91311(18785)   (Show Source): You can put this solution on YOUR website! The only way to express the square root of 147 exactly is . Your computer's built-in calculator (both Windows and MAC O/Ss have them) will give you a numerical approximation to greater precision than you can ever practically use. Or you can SWAG it. 12 squared is 144 and 13 squared is 169, so the root of 147 has to be closer to 12 than 13. Calculate 12.1 squared and 12.2 squared: 146.41 and 148.84. So closer to 12.1 than 12.2...and so on. You can keep that up until you get enough decimal places to suit you. Write back once you get to calculus and have learned how to take a first derivative -- then we can do the Newton-Raphson method. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it