Answer
$x = 4$
Work Step by Step
In similar figures, corresponding sides are proportional. Each set of corresponding sides has the same ratio.
Let's set up a proportion to set the ratios of sides equal to one another:
$\frac{2}{x} = \frac{4}{8}$
Use the cross products property to eliminate the fractions:
$4x = 16$
Divide each side of the equation by $4$ to solve for $x$:
$x = 4$
