Finding the Area and Perimeter of a Square Given the Diagonal

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Half it, multiply by itself and double it.

Never understood why its decribed in difficult terms. Most people just need to pass their test. I had a near max math SAT because i never cared about the explinations. I just got to the point.

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you can calculate the perimeter of any square just by multiplying its diagonal per 2, 86

camillaaaa