If the length of the diagonal of a square is 16 cm then find the perimeter of the square
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length of diagonal =16 cm we can use Pythagoras theorem as squares all angles are 90°so consider two sides as X and other is 16 so Pythagoras theorem is hypotenuse 2=(side 1)2+(side 2)2 so hypotenuse is 16 (16)2 is 256and X+X=2x so X =256/2we will get 128 then perimeter of square is 4 * side so we will get 128*4 =512 cm
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