Answer:
6). x + 70° + 70° = 180°
x + 140° = 180°
x = 180° - 140° = 40°
Therefore x is equal to 40°
7). y + 55° +60° = 180°
y + 115° = 180°
y = 180° - 115° = 65°
Therefore x is equal to 65°
8). n + n + 50° = 180°
2n + 50° = 180°
2n = 180° - 50° = 130°
n = 130°/2 = 65°
Therefore both the angles are 65°
Explaination:
All the angles of a triangle always add up to 180°
