$\"\"$

Let the perimeter of $\"\"$ is x.

The perimeter of $\"\"$ is $\"\"$ .

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Add: $\"\"$ ) $\"\"$

By the Proportional perimeters theorem, If two triangles are similar, then the perimeters

are proportional to the measures of corresponding sides, $\"\"$ .

$\"\"$ (Substitute the known values)

$\"\"$ (Apply cross products property)

$\"\"$ (Multiply)

$\"\"$ (Divide each side by 5)

$\"\"$ (Simplify) $\"\"$

The perimeter of $\"\"$ is 10.8 units.