Due to the amount of time I am concentrating on the project from my work, I don’t have time to blog much this month. I just want to share a beautiful proof of Heron’s formula (or Hero’s formula) with you guys. I didn’t prove this, actually the origin of the proof is unknown. Here it is:

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The origin of the proof is not unknown. As the image file suggests, this proof was discovered by Miles Edwards. It was published in the American Mathematical Monthly in December 2007.