besar sudut sudut sbuah segitiga adl 2xderajat,(3x-5)derajat,dan (4x+14)derajat.bsr sudut masing masing adl...tlng jwb pk cara yaa

2x° + (3x-5)° + (4x+14) = 180°
9x° + 9° = 180°
9x° = 180° - 9°
9x° = 171°
x° = 171° ÷ 9°
x° = 19°

2x = 2 x 19 = 38
3x-5 = 3 x 19 - 5 = 52
4x+14 = 4 x 19 + 14 = 90