Ответ:
[tex]c = \sqrt{ {d}^{2} - {a}^{2} - {b}^{2} } [/tex]
[tex]c = \sqrt{ {7}^{2} - {4}^{2} - {5}^{2} } = 2 \sqrt{2} [/tex]
[tex] {c}^{2} = 8[/tex]
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Ответ:
[tex]c = \sqrt{ {d}^{2} - {a}^{2} - {b}^{2} } [/tex]
[tex]c = \sqrt{ {7}^{2} - {4}^{2} - {5}^{2} } = 2 \sqrt{2} [/tex]
[tex] {c}^{2} = 8[/tex]