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.
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