Question

1) Calcule o valor de x nos quadrilateros;

Answer 1

a) x + 110 + 120 + 60 = 360
x + 290 = 360
x = 360 - 290
x = 70 graus

b) x + 130 + 90 + 90 = 360
x + 310 = 360
x = 360 - 310
x = 50 graus

Answer 2

120+110+60+×=360 230+60+×=360 290+×=360 X=360-290 X=70 90+90+130+×=360 180+130+×=360 310+×=360 X=360-310 X=50