Question

Calcule o valor de X em cada caso.​

Answer 1

A soma dos 4 ângulos internos de um quadrilátero sempre resulta em 360º:

a) $x+110\º+60\º+80\º=360\º$

$x=360\º-110\º-60\º-80\º$

$x=110\º$

b) $2x+4x+5x+x=360\º$

$12x=360\º$

$x=\frac{360\º}{12}$

$x=30\º$

c) $x+90\º+80\º+120\º=360\º$

$x=360\º-90\º-80\º-120\º$

$x=70\º$

d) $5x+5x+x+x=360\º$

$12x=360\º$

$x=\frac{360\º}{12}$

$x=30\º$