nilai x + y pliss pakai cara nyaa

x = 360° - (50°+50°)
= 360° - 100°
= 260
= 260 : 2
= 130°
y= x
jadi, x + y = 130° + 130° = 260°

jumlah sudut jajargenjang=360°
x=360°-(50° + 50°) = 260° : 2 = 130 °
y=x karena sudutnya sama
Y+x=260°