fudgeroundsj fudgeroundsj

16-10-2018
Mathematics

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a square has a side lengths of 9, use the pythagorean theorem to find the length of the diagonal

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jimrgrant1 jimrgrant1

16-10-2018

diagonal = 9√2 ≈ 12.73

the diagonal splits the square into 2 right triangles with the hypotenuse being the diagonal of the square

using Pythagoras' identity

d = √(9² + 9²) = √162 = 9√2 ≈ 12.73 ( to 2 dec. places )

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