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posted by siobhan on Tuesday, September 7, 2010 at 7:09am.
Find the diagonal length of a square with a side of the square measuring 5 centimetres?
sqrt(5^2 + 5^2) = sqrt 50 = 5 sqrt2 = 7.0711 cm Remeber the Pythagorean theorem? The diagonal is like a hypotenuse.
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