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

User Nahida
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The diagonal length is 12.73 units
User Tejs
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{a}^(2) + {b}^(2) = {c}^(2) \\ {9}^(2) + {9}^(2) = {c}^(2) \\ {81} + 81 = {c}^(2) \\ 162 = {c}^(2) \\ √(162) = \sqrt{ {c}^(2) } \\ 12.73 = c
the length of the diagonal is 12.73
User JohnXF
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