# SOLUTION: Hello I need the formula to solve this problem: Find the area and perimeter of a square with a diagonal of 10 inches.

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 Question 136119: Hello I need the formula to solve this problem: Find the area and perimeter of a square with a diagonal of 10 inches.Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!A SQUARE WITH A DIAGONAL IS X^2+X^2=10^2 2X^2=100 X^2=100/2 X62=50 X=SQRT50 X=7.07 IN. IS THE LENGTH OF THE SIDES OF THE SQUARE. AREA=7.07^2=50 IN^2. PERIMETER=4*7.0728.28 IN.