What is the square root of 4047?

sqrt(4047) To do this without a calculator we note that

sqrt(3600) = 60

& sqrt(4900) = 70

So by a nesting process. we note that tha answer will be between 60 & 70

So 3906.25 is too smaLll Try 63.5.

63.5^2 = 63.5 X 63.5 = 4032.25

63.51^2 = 4033.5201

63.53^2 = 4036.0609

63.6^2 = 4044.96

63.63^2 = 4048.77

63.62^2 = 4047.50..

63.616^2 = 4046.999...

So answer to 3 d.p. is 63.616

However you can keep 'nesting' soso mny decimal places.

70

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