As shown in the figure, D is the midpoint of the AC side in the equilateral triangle ABC, e is on the extension line of BC, de = dB, if the perimeter of △ ABC is 6, then the perimeter of △ BDE

The perimeter of △ BDE = 3 + 2 √ 3
Where: BD = de = √ 3, BC = 2 + 1 = 3

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