ГДЗ по геометрии 9 класс Атанасян ФГОС Задание 581

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\[\textbf{а)}\ a = 5;b = 8:\]

\[c^{2} = 36 + 64 = 100\]

\[c = 10.\]

\[\textbf{б)}\ a = 5;b = 6:\]

\[c = 25 + 36 = 61\]

\[c = \sqrt{61}.\]

\[\textbf{в)}\ a = 3;b = \frac{4}{7}:\]

\[c^{2} = \frac{9}{49} + \frac{16}{49} = \frac{25}{49}\]

\[c = \frac{5}{7}.\]

\[\textbf{г)}\ a = 8;b = 8\sqrt{3}:\]

\[c^{2} = 64 + 64 \bullet 3 = 256\]

\[c = 16.\]