Question

Preciso de ajuda neste exercício ​

Answer 1

Resposta:

5

6

$\sqrt{2}$

Explicação passo-a-passo:

$a^{2} = b^{2} + c^{2} \\\\x^{2} = 4^{2} + 3^{2} \\x^{2} = 25\\x= \sqrt{25} \\x = 5\\\\\\10^{2} = 8^{2} + x^{2} \\100 = 64 + x^{2} \\x^{2} = 36 \\x = 6\\\\\\\\sen(45) = \frac{\sqrt{2} }{2} \\\frac{\sqrt{2} }{2} = \frac{x}{2} \\x = \sqrt{2}$