Question

Convert $202,020$ ${\text{metre}}^2$ to square kilometres.

• A. $0.20202$ ${\text{km}}^2$
• B. $2.0202$ ${\text{km}}^2$
• C. $20.20202$ ${\text{km}}^2$
• D. $0.2020202$ ${\text{km}}^2$

Answer 1

The correct option is A $0.20202$ ${\text{km}}^2$

We know,
$1\text{km}=1000\text{m}$
$\Rightarrow 1{\text{km}}^2=1000\times 1000$ ${\text{m}}^2$
$\text{Or,}1{\text{m}}^2=\frac{1}{1,000,000}{\text{km}}^2$
So, $202,020{\text{m}}^2=\frac{202,020}{1,000,000}=0.20202$ ${\text{km}}^2$