Question

Find the square root of the decimal number 42.25

Answer 1

42.25

$\begin{array}{cc}& 6.5\\ 6& \overline{42}\cdot \overline{25}\\ & -36\\ 125& 625\cdot \\ & -625\\ & 0\end{array}$

Hence, the square root of 42.25 is 6.5.