#### Answer

The constant of variation is $1.1$.
The variation equation is $y=\frac{1.1}{x^2}$.

#### Work Step by Step

$y=\frac{k}{x^2}$
$y=0.011;x=10$
$0.011=\frac{k}{10^2}$
$0.011=\frac{k}{100}$
$k=1.1$
$y=\frac{1.1}{x^2}$
The constant of variation is $1.1$.
The variation equation is $y=\frac{1.1}{x^2}$.