Tolong jawab nomor 25 26 27 dengan caranya

26. 180 = 5x + 40
140 = 5x
28 = x

3x + 40
3(28) + 40
84 + 40
= 124 (d)

25. B
26. A cara: 2x + 3x + 40° = 180°
5x + 40° = 180°
5x = 180° - 40°
5x = 140°
x = 140° : 5
x = 28°
27. C

Semoga membantu.. maaf klo salah