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| PAGE: 419 | SET: Exercises | PROBLEM: 1 |
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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