3 years ago

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

Mathematics

2 answers:

AnnyKZ [126]3 years ago

3 0

The diagonal length is 12.73 units

hodyreva [135]3 years ago

3 0

${a}^{2} + {b}^{2} = {c}^{2} \\ {9}^{2} + {9}^{2} = {c}^{2} \\ {81} + 81 = {c}^{2} \\ 162 = {c}^{2} \\ \sqrt{162} = \sqrt{ {c}^{2} } \\ 12.73 = c$
the length of the diagonal is 12.73

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