Regular hexagon $ABCDEF$ is the base of the right pyramid $PABCDEF.$  If $PAD$ is an equilateral triangle with side length 6, then what is the sum of the lengths of the edges of the pyramid?
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Regular hexagon $ABCDEF$ is the base of the right pyramid $PABCDEF.$  If $PAD$ is an equilateral triangle with side length 6, then what is the sum of the lengths of the edges of the pyramid?
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Regular hexagon $ABCDEF$ is the base of the right pyramid $PABCDEF.$  If $PAD$ is an equilateral triangle with side length 6, then what is the sum of the lengths of the edges of the pyramid?
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