Question

qual a resposta da questao

Answer 1

Cosseno de 45° = CA/ H
$\frac{ \sqrt{2} }{2} = \frac{y}{20 \sqrt{2} }$
y = 20

Seno de 30° = CO/ H
$\frac{1}{2} = \frac{x}{20}$
x = 10