A) \( \Large 40 ^{\circ} \) |
B) \( \Large 60 ^{\circ} \) |
C) \( \Large 80 ^{\circ} \) |
D) \( \Large 100 ^{\circ} \) |
B) \( \Large 60 ^{\circ} \) |
Now \( \Large 3x ^{\circ} + 4x ^{\circ} + 2x ^{\circ} = 180 ^{\circ} \)
=> \( \Large 9x = 180 ^{\circ} \)
=> \( \Large x = 20 ^{\circ} \)
Therefore \( \Large y = 3x = 3 \times 20^{\circ} = 60 ^{\circ} \)