A concrete border is to be built around a triangular flower garden that has sides of 10 m, 7 m and 8 m. The border is to be 1 m wide on all sides of the garden. Before the concrete can be poured, wooden forms needs to be placed on the inside and outside perimeter of the border. Determine the total length of wood needed to build the forms.
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Two good solutions are provided by Reiny and MathMate in the related questions below.
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