SOLUTION: a square has a diagonal of 12cm. calculate the length of the side of the square correct to 2 decimal places

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Question 303605: a square has a diagonal of 12cm. calculate the length of the side of the square correct to 2 decimal places
Found 2 solutions by graphmatics, Alan3354:
Answer by graphmatics(170) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the common size of the length and width of the square then x^2+x^2 = 12^2. We must simply solve x^2 + x^2 = 12^2. So 2*x^2 =sqrt(12^2) = 12 = 2*6 = 2^6
x^2 = 6
x = sqrt(6) = 2.44

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
s = length of sides
s%5E2+%2B+s%5E2+=+12%5E2+=+144
2s%5E2+=+144
s%5E2+=+72
s =~ 8.485 cm