Question

Find the square root of 2.56.

• A. 1.5
• B. 1.6
• C. 2.6
• D. 2.5

Answer 1

The correct option is B 1.6

Using division method, square root of 2.56 can be found out.

$\begin{array}{cc}& 1.6\\ 1& \overline{2}\cdot \overline{56}\\ & -1\\ 26& 156\\ & -156\\ & 0\end{array}$

Hence, the square root of 2.56 is 1.6.