Let's find, which decimal number is to be subtracted from 48.09, so that the square root of the result is $5.7$.

Let's find the approximate value of the following:

$\sqrt{6}$ (up to $2$ decimal places)

Let's find the approximate value of the following:

$\sqrt{8}$ (up to $2$ decimal places)

Let's find the approximate value of the following:

$\sqrt{11}$ (up to $3$ decimal places)

Let's find the approximate value of the following:

$\sqrt{12}$ (up to $3$ decimal places)