Question

Ajudeeem Aii,pleasee

Answer 1

op / hip = sen 45°

  x
---- = sen 45 °
√2
===================
 x            √2
----  =    ------
√2            2
===================
2x = √2.√2
2x = 2
  x = 1

Answer 2

$Sen \ 45^o = \dfrac{ \sqrt{2} }{2}$

$\dfrac{ \sqrt{2} }{2} = \dfrac{x}{\sqrt{2}} \\ \\ \\ 2x = \sqrt{2} * \sqrt{2} \\ \\ 2x = 2 \\ \\ \\ x = \dfrac{2}{2} \\ \\ \\ => x = 1$