2x + 3x + 10° = 180°
5x + 10° = 180°
5x = 180° - 10°
5x = 170°
x = 170 ÷ 5
x = 34
The largest angel :
3x + 10° = 3(34) + 10° = 102 + 10° = 112°
So, the answer is 112°
Hope it helpful and useful :)
