Question

If the diagonal of a square is $\left(1.02\right)\sqrt{2}$ cm, then its approximate area is

• A. $1.4c{m}^2$
• B. $1.04c{m}^2$
• C. $1.5c{m}^2$
• D. None of these

Answer 1

The correct option is B $1.04c{m}^2$

Given,

Area of square $=\frac{1}{2}{d}^2$

$=\frac{1}{2}[1.02\times \sqrt{2}{]}^2$

$=1.04c{m}^2$