The Shape of a New One Pound Coin?

It's the same shape as a new one pound coin, is it? Nowso in inextremist, could you plug a gap or a wound in your skin with a one pound coin? Yes. But hang on, no. Is it the sameshape as that io? Is a three would be if it was a three d em? It's more equilateral, i think, the one in the skin compared to the pound coin. And so lord kelvin, back in the day, he was trying to work out what is the best way that foam can work. So if you have a load of bubbles, what's the absolute most efficient way that they can pack together