Question

na figura a seguir temos r // s qual o valor da medida X?

Answer 1

$\frac{1}{2} *x + 2x +135=180$

$\frac{x+4x}{2} +135=180$

$\frac{5x}{2} +135=180$

$\frac{5x}{2} =180-135$

$\frac{5x}{2} = 45$

$5x=90$

$x= \frac{90}{5} =18$

x=18