Question: A machine part is in the shape of a square with equilateral triangles attached to two sides (see Fig. 2.138). Find the perimeter of the

A machine part is in the shape of a square with equilateral triangles attached to two sides (see Fig. 2.138). Find the perimeter of the machine part.

2.4 cm Fig. 2.138

2.4 cm Fig. 2.138

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