Question

Calcule a cota x das figuras abaixo:

Answer 1

$\cos15 = \frac{50}{x} \\ \\ 0.96 = \frac{50}{x} \\ \\ x = \frac{50}{0.96} = 52.0833$

${x}^{2} = {20}^{2} + {20}^{2} \\ \\ {x}^{2} = 400 + 400 \\ \\ {x}^{2} = 800 \\ \\ x = \sqrt{800} = \\ \\ x = 20 \sqrt{2}$