The value of x is:
<u><em>Recall</em></u>:
Perimeter of a shape is the sum of all its sides
<em>Thus</em>:
Perimeter of the triangle =
Perimeter of the rectangle =
We are told that the perimeter of both shapes are equal. Set both perimeters equal and solve for x.
<em>Add like terms</em>
<em />
<em>Divide both sides by 3</em>
<em />
The value of
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