If x ÷ 441 = 0.02 , then the value of x is ?

Answer: Option A

$$\begin{array}{rl}& \iff \frac{\sqrt{x}}{\sqrt{441}}=0.02\\ & \iff \frac{\sqrt{x}}{21}=0.02\\ & \iff \sqrt{x}=0.02\times 21\\ & \iff \sqrt{x}=0.42\\ & \iff x={\left(0.42\right)}^2\\ & \iff x=0.1764\end{array}$$